Jiří Hejtmánek
Publications:
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M. Pashchenko, P. Veverka, T. Kmječ, O. Kaman, L. Kubíčková, J. Kohout, M. Klementová, O. Kravchuk, A. Vakula, S. Tarapov, J. Hejtmánek, K. Knížek
Magnetic, FMR and Mössbauer studies of greigite nanoparticles
J. Alloy. Compd. 857 (2021) 157569(1)
- 157569(10).
-
N. Antonatos, D. Bouša, E. Kovalska, D. Sedmidubský, K. Růžička, P. Vrbka, M. Veselý, J. Hejtmánek, Z. Sofer
Large-Scale Production of Nanocrystalline Black Phosphorus Ceramics
ACS Applied Materials and Interfaces 12 (2020) 7381
- 7391.
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P. Baláž, M. Baláž, E. Dutková, M. Hegedus, M. Rajňák, K. Knížek, J. Hejtmánek, J. Navrátil, M. Achimovičová and J. Briančin
Magnetization as an Effective Tool for Kinetics Evaluation in Mechanochemical Synthesis of Chalcopyrite CuFeS2
Acta Phys. Polon. A 137 (2020) 647
- 649.
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P. Baláž, E. Dutková, P. Levinský, N. Daneu, L. Kubíčková, K. Knížek, M. Baláž, J. Navrátil, J. Kašparová, V. Ksenofontov, A. Möller, J. Hejtmánek
Enhanced thermoelectric performance of chalcopyrite nanocomposite via co-milling of synthetic and natural minerals
Mater. Lett. 275 (2020) 128107(1)
- 128107(4).
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Christophe Candolfi, Martin Míšek, Patrick Gougeon, Rabih Al Rahal Al Orabi, Philippe Gall, Régis Gautier, Sylvie Migot, Jaafar Ghanbaja, Jiří Kaštil, Petr Levinský, Jiří Hejtmánek, Anne Dauscher, Bernard Malaman and Bertrand Lenoir
Coexistence of a charge density wave and superconductivity in the cluster compound K2Mo15Se19
Phys. Rev. B 101 (2020) 134521(1)
- 134521(11).
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J. Navrátil, P. Levinský, J. Hejtmánek, M. Pashchenko, K. Knížek, L. Kubíčková, T. Kmječ, Č. Drašar
Peculiar Magnetic and Transport Properties of CuFeS2: Defects Playa Key Role
J. Phys. Chem. C 124 (2020) 20773
- 20783.
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H. Němec, C. Kadlec, V. Goian, F. Borodavka, V. Železný, M. Kempa, K. Knížek, J. Hejtmánek, J. Buršík, M. Soroka
Metal-insulator transition in (Pr,Y)0.7Ca0.3CoO3 in the far-infrared spectral region
Phys. Rev. B 102 (2020) 195105(1)
- 195105(13).
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D. Nuzhnyy, J. Petzelt, V. Bovtun, M. Savinov, P. Bednyakov, M. Kempa, O. Kaman, P. Levinský, J. Hejtmánek, Z. Jirák
Broadband dielectric spectroscopy of La0.65Sr0.35MnO3@TiO2 core–shell nanocomposites
J. Phys.-Condens. Mat. 32 (2020) 415701(1)
- 415701(12).
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P. Ripka, V. Grim, M. Mirzaei, D. Hrakova, J. Uhrig, F. Emmerich, C. Thielemann, J. Hejtmánek, O. Kaman, and R. Tesař
Modelling and measurement of magnetically soft nanowire arrays for sensor applications
Sensors 2021 (2020) 1
- 17.
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P. Čermák, J. Hejtmánek, T. Plecháček, J. Navrátil, J. Kašparová, V. Holý, Z. Zmrhalová, M. Jarošová, L. Beneš, Č. Drašar
Thermoelectric properties and stability of Tl-doped SnS
J. Alloy. Compd. 811 (2019) 151902(1)
- 151902(9).
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O. Kaman, Z. Jirák, J. Hejtmánek, A. Ndayishimiye, M. Prakasam, G. Goglio
Tunneling magnetoresistance of hydrothermally sintered La1-xSrxMnO3-silica nanocomposites
J. Magn. Magn. Mater. 479 (2019) 135
- 143.
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K. Knížek, P. Levinský and J. Hejtmánek
LDA+U Calculation of Electronic and Thermoelectric Properties of Doped Tetrahedrite Cu12Sb4S13
J. Electron. Mater. 48 (2019) 2018
- 2021.
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P. Levinský, C. Candolfi, A. Dauscher, B. Lenoir, and J. Hejtmánek
Thermoelectric Properties of Magnesium-Doped Tetrahedrite Cu12-xMgxSb4S13
J. Electron. Mater. 48 (2019) 1926
- 1931.
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P. Levinský, Ch. Candolfi, A. Dauscher, J. Tobola, J. Hejtmánek and B. Lenoir
Thermoelectric properties of the tetrahedrite–tennantite solid solutions Cu12Sb4-x−AsxS13 and Cu10Co2Sb4-y−yAsyS13 (0 ≤ x, y ≤ 4)†
Phys. Chem. Chem. Phys. 21 (2019) 4547
- 4555.
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Z. Jirák, O. Kaman, K. Knížek, P. Levinský, M. Míšek, P. Veverka, J. Hejtmánek
High-field magnetoconductance in La-Sr manganites of FM and AFM ground states
J. Magn. Magn. Mater. 456 (2018) 167
- 178.
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J. Kastil, J. Kamarad, M. Misek, J. Hejtmanek, Z. Arnold
Complex transport properties of the Ni1.92Mn1.56Sn0.52 Heusler alloy and its magnetic behavior
J. Magn. Magn. Mater. 466 (2018) 260
- 266.
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K. Knížek, M. Pashchenko, P. Levinský, O. Kaman, J. Houdková, P. Jiříček, J. Hejtmánek, M. Soroka, and J. Buršík
Spin Seebeck effect in ɛ-Fe2O3 thin films with high coercive field
J. Appl. Phys. 124 (2018) 213904(1)
- 213904(8).
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A. Ndayishimiye, S. Buffière, M. -A. Dourges, A. Largeteau, M. Prakasam, S. Mornet, O. Kaman, Z. Jirák, J. Hejtmánek, G. Goglio
Design of 0–3 type nanocomposites using hydrothermal sintering
Scripta Mater. 148 (2018) 15
- 19.
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H. Fujishiro, , Y. Noda, K. Akuzawa, T. Naito, A. Ito, T. Goto, M. Maryško, Z. Jirák, J. Hejtmánek, and K. Nitta
Electrical resistivity anomaly, valence shift of Pr ion, and magnetic behavior in epitaxial (Pr1-yYy)1-xCaxCoO3 thin films under compressive strain
J. Appl. Phys. 121 (2017) 115104(1)
- 115104(8).
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J. Hejtmánek, Z. Jirák, O. Kaman and S. Vratislav
Tunneling magnetoresistance in nanogranular La1-xSrxMnO3 (x∼0.5)
AIP Adv. 7 (2017) 055818(1)
- 055818(6).
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J. Hirschner, M. Maryško, J. Hejtmánek, R. Uhrecký, M. Soroka, J. Buršík, A. Anadón, M. H. Aguirre, and K. Knížek
Spin Seebeck effect in Y-type hexagonal ferrite thin films
Phys. Rev. B 96 (2017) 064428(1)
- 064428(8).
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Z. Jirák, J. Hirschner, O. Kaman, K. Knížek, P. Levinský, M. Maryško, J. Hejtmánek
Structure and transport properties of La1−xSrxMnO3 granular ceramics
J. Phys. D-Appl. Phys. 50 (2017) 075001(1)
- 075001(15).
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J. Koktan, G. Goglio, J. Hejtmánek, Z. Jirák, K. Knížek, J. Kuličková, M. Maryško, O. Kaman
Magnetoconductivity of the La1-xSrxMnO3@TiO2 Nanocomposite
IEEE Trans. Magn. 53 (2017) 8109606(1)
- 8109606(6).
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V. Goian, F. Kadlec, C. Kadlec, B. Dabrowski, S. Kolesnik, O. Chmaissem, D. Nuzhnyy, M. Kempa, V. Bovtun, M. Savinov, J. Hejtmánek, J. Prokleška, S. Kamba
Spectroscopic studies of the ferroelectric and magnetic phase transitions in multiferroic Sr1-xBaxMnO3
J. Phys.-Condens. Mat. 28 (2016) 175901(1)
- 175901(7).
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Štěpán Huber, Ondřej Jankovský, David Sedmidubský, Jan Luxa, Kateřina Klímová, Jiří Hejtmánek, Zdeněk Sofer
Synthesis, structure,thermal,transport and magnetic properties of VN
ceramics
Ceram. Int. 42 (2016) 18779
- 18784.
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O. Kaman, J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško, P. Novák, S.
Vratislav
Effects of Tb3+ dopants in the La1-xSrxMnO3 bulk and nanoparticle ferromagnets
J. Phys.-Condens. Mat. 28 (2016) 206001(1)
- 206001(8).
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P. Levinský, J. -B. Vaney, C. Candolfi, A. Dauscher, B. Lenoir, J. Hejtmánek
Electrical, Thermal, and Magnetic Characterization of Natural Tetrahedrites–Tennantites of Different Origin
J. Electron. Mater. 45 (2016) 1351
- 1357.
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H. Němec, K. Knížek, Z. Jirák, J. Hejtmánek, M. Soroka, J. Buršík
Charge transport in thin layer NaxCoO2 (x ∼ 0.63) studied by terahertz spectroscopy
J. Phys.-Condens. Mat. 28 (2016) 355601(1)
- 355601(6).
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Y. Noda, H. Fujishiro, T. Naito, A. Ito, T. Goto, J. Hejtmanek, Z. Jirak
Electrical resistivity anomaly in (Pr1−yMy)1−xCaxCoO3 epitaxial films (M=Y, Gd) fabricated by pulsed laser deposition
AIP Adv. 6 (2016) 025318(1)
- 025318(9).
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J. Buršík M. Soroka, K. Knížek, J. Hirschner, P. Levinský, J. Hejtmánek
Oriented thin films of Na0.6CoO2 and Ca3Co4O9 deposited by spin-coating method on polycrystalline substrate
Thin Solid Films 603 (2016) 400
- 403.
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E. Alleno, D. Bérardan, C. Byl, C. Candolfi, R. Daou, R. Decourt, E. Guilmeau, S. Hébert, J. Hejtmánek, B. Lenoir, P. Masschelein, V. Ohorodnichuk, M. Pollet, S. Populoh, D. Ravot, O. Rouleau, and M. Soulier
Invited Article: A round robin test of the uncertainty on the measurement
of the thermoelectric dimensionless figure of merit of Co0.97Ni0.03Sb3
Rev. Sci. Instrum. 86 (2015) 011301(1)
- 011301(8).
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J. Hejtmánek, Z. Jirák, and J. Šebek
Spin-entropy contribution to thermopower in the [Ca2CoO3-t ]0.62(CoO2) misfits
Phys. Rev. B 92 (2015) 125106(1)
- 125106(11).
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K. Knížek, Z. Jirák, J. Hejtmánek, P. Brázda, J. Buršík, M. Soroka, P. Beran
Structural study of layered cobaltate Lax/3CoO2 (x ~ 1) at temperatures up to 800 K
J. Solid State Chem. 229 (2015) 160
- 163.
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K. Knížek, P. Novák, Z. Jirák, J. Hejtmánek, M. Maryško, J. Buršík
Magnetism and transport properties of layered rare-earth cobaltates Ln0.3CoO2
J. Appl. Phys. 117 (2015) 17B706(1)
- 17B706(4).
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M. Maryško, J. Hejtmánek, V. Laguta, Z. Sofer, D. Sedmidubský, P. Šimek,
M. Veselý, M. Mikulics, C. Buchal, A. Macková, P. Malínský, and R. A. Wilhelm
Ferromagnetic and paramagnetic magnetization of implanted
GaN:Ho,Tb,Sm,Tm films
J. Appl. Phys. 117 (2015) 17B907(1)
- 17B907(4).
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K. Rubešová, T. Hlásek, V. Jakeš, Š. Huber, J. Hejtmánek, D. Sedmidubský
Effect of a powder compaction process on the thermoelectric properties of Bi2Sr2Co1.8Ox ceramics
J. Eur. Ceram. Soc. 35 (2015) 525
- 531.
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J. Hejtmánek, K. Knížek, V. Švejda, P. Horna and M. Sikora
Test System for Thermoelectric Modules and Materials
J. Electron. Mater. 43 (2014) 3726
- 3732.
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Z. Jirak, J. Hejtmanek, K. Knizek, P. Novak, E. Santava, H. Fujishiro
Magnetism of perovskite cobaltites with Kramers rare-earth ions
J. Appl. Phys. 115 (2014) 17E118 (1)
- 17E118 (3).
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S. Kamba, V. Goian, V. Skoromets, J. Hejtmánek, V. Bovtun, M. Kempa, F. Borodavka, P. Vaněk, A. A. Belik, J. H. Lee, O. Pacherová, K. M. Rabe
Stron spin-phonon coupling in infrared and Raman spectra of SrMnO3
Phys. Rev. B 89 (2014) 064308(1)
- 064308(9).
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K. Knizek, Z. Jirak, J. Hejtmanek, M. Veverka, O. Kaman, M. Marysko,
E. Santava, and G. Andre
Effect of Ising-type Tb3+ions on the low-temperature magnetism of La, Ca cobaltite
J. Phys.-Condens. Mat. 26 (2014) 116003(1)
- 116003(9).
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M. Maryško, J. Hejtmánek, Z. Jirák, O. Kaman, K. Knížek
Terbium induced glassy magnetism in La,Ca-based cobaltites
J. Appl. Phys. 115 (2014) 17E103(1)
- 17E103(3).
-
Tomoyuki Naito, Hiroyuki Fujishiro, Terukazu Nishizaki, Norio Kobayashi,
J. Hejtmánek, K. Knížek and Z. Jirák
Suppression of the metal-insulator transition by magnetic field
in (Pr1-yYy)0.7Ca0.3CoO3 (y=0.0625)
J. Appl. Phys. 115 (2014) 233914(1)
- 233914(5).
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R. Al Rahal Al Orabi, P. Gougeon, P. Gall, B. Fontaine, R. Gautier, M. Colin, Ch. Candolfi, A. Dauscher, J. Hejtmánek, B. Malaman, B. Lenoir
X‑ray Characterization, Electronic Band Structure, and
Thermoelectric Properties of the Cluster Compound Ag2Tl2Mo9Se11
Inorg. Chem. 53 (2014) 11699
- 11709.
-
T. Zhou, M. Colin, C. Candol, C. Boulanger, A. Dauscher, E. Santava, J. Hejtmanek, P. Baranek, R. Al Rahal Al Orabi, M. Potel, B. Fontaine,
P. Gougeon, R. Gautier, B. Lenoir
Comprehensive Study of the Low-Temperature Transport and Thermodynamic Properties of the Cluster Compounds AgxMo9Se11 (3.41 ≤ x ≤ 3.78)
Chem. Mater. 16 (2014) 4765
- 4775.
-
H. Fujishiro, T. Naito, D. Takeda, N. Yoshida, T. Watanabe, K. Nitta, J. Hejtmánek, K. Knížek, and Z. Jirák
Simultaneous valence shift of Pr and Tb ions at the spin-state transition in (Pr1-yTby)0.7Ca0.3CoO3
Phys. Rev. B 87 (2013) 155153(1)
- 155153(7).
-
J. Hejtmánek, Z. Jirák, O. Kaman, K. Knížek, E. Šantavá, K. Nitta, T. Naito, H. Fujishiro
Phase transition in Pr0.5Ca0.5CoO3 and related cobaltites
Eur. Phys. J. B 86 (2013) 305(1)
- 305(8).
-
Z. Jirák, J. Hejtmánek, K. Knížek, M. Maryško, P. Novák, E. Šantavá, T. Naito, H. Fujishiro
Ground-state properties of the mixed-valence cobaltites Nd0.70Sr0.3CoO3, Nd0.7Ca0.3.CoO3 and Pr0.7.Ca0.3CoO3
J. Phys.-Condens. Mat. 25 (2013) 216006(1)
- 216006(12).
-
K. Knížek, J. Hejtmánek, M. Maryško, P. Novák, E. Šantavá, Z. Jirák, T. Naito, H. Fujishiro, C. de la Cruz
Spin-state crossover and low-temperature magnetic state in yttrium-doped Pr0.7Ca0.3CoO3
Phys. Rev. B 88 (2013) 224412(1)
- 224412(8).
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J. Leszczynski, V. Da Ros, B. Lenoir, A. Dauscher, C. Candolfi,
P. Masschelein, J. Hejtmánek, K. Kutorasinski, J. Tobola, R. I. Smith,
C. Stiewe and E. Müller
Electronic band structure, magnetic, transport and thermodynamic properties of In-filled skutterudites InxCo4Sb12
J. Phys. D-Appl. Phys. 46 (2013) 495106(1)
- 495106(13).
-
M. Puyet, B. Lenoir, A. Dauscher, Candolfi, J. Hejtmánek, C. Stiewe,
and E. Müller
Influence of Ni impurities on the thermoelectric properties of Ca-partially filled skutterudites CaxCo4Sb12
Appl. Phys. Lett. 101 (2013) 222105(1)
- 222105(4).
-
H. Fujishiro, T. Naito, S. Ogawa, N. Yoshida, K. Nitta, J. Hejtmánek, K. Knížek, and Z. Jirák
Valence Shift of Pr Ion from 3+ to 4+ in (Pr1-yYy)..0.7Ca0.3CoO3 Estimated by X-Ray Absorption Spectroscopy
J. Phys. Soc. Jpn. 81 (2012) 064709(1)
- 064709(5).
-
J. Hejtmánek, K. Knížek, M. Maryško, Z. Jirák, D. Sedmidubský, O. Jankovský, Š. Huber, P. Masschelein, B. Lenoir
Magnetic and magnetotransport properties of misfit cobaltate Ca3Co3.93O9+δ
J. Appl. Phys. 111 (2012) 07D715(1)
- 07D715(3).
-
O. Jankovský, D. Sedmidubský, Z. Šofer, P. Šimek, J. Hejtmánek
THERMODYNAMIC BEHAVIOR OF Ca3Co3.93+xO9+δCERAMICS
Ceram.-Silik. 56 (2012) 139
- 144.
-
K. Knížek, J. Hejtmánek, M. Maryško, Z. Jirák, J. Buršík
Stabilization of the high-spin state of Co3+ in LaCo1-xRhxO3
Phys. Rev. B 85 (2012) 134401(1)
- 134401(7).
-
K. Knížek, Z. Jirák, J. Hejtmánek, M. Maryško, J. Buršík
Structure and properties of novel cobaltates Ln0.3CoO2 (Ln = La, Pr, and Nd)
J. Appl. Phys. 111 (2012) 07D707(1)
- 07D707(3).
-
M. Maryško, Z. Jirák, J. Hejtmánek and K. Knížek
Glassy ferromagnetism and phase separation in Pr0.5Ca0.5CoO3
J. Appl. Phys. 111 (2012) 07E110(1)
- 07E110(3).
-
K. Rubešová, T. Hlásek, V. Jakeš, D. Sedmidubský, J. Hejtmánek
Water based sol-gel methods used for Bi-222 thermoelectrics preparation
J. Sol-Gel Sci. Techn. 64 (2012) 93
- 99.
-
D. Sedmidubský, V. Jakeš, O. Jankovský, J. Leitner, Z. Šofer, J. Hejtmánek
Phase equilibria in Ca–Co–O system
J. Solid State Chem. 194 (2012) 199
- 205.
-
P. Šimek, Z. Šofer, D. Sedmidubský, O. Jankovský, J. Hejtmánek, M. Maryško, M. Václavů, M. Mikulics
Mn doping of GaN layers grown by MOVPE
Ceram.-Silik. 56 (2012) 122
- 126.
-
Z. Sofer, D. Sedmidubský, Š. Huber, J. Hejtmánek, A. Macková, R. Fiala
Mn doped GaN thin films and nanoparticles
Int. J. Nanotechnol. 9 (2012) 809
- 824.
-
M. Chavoutier, V. Jubera, P. Veber, M. Velazquez, O. Viraphong, J. Hejtmánek, R. Decourt, J. Debray, B. Menaert, P. Segonds, F. Adamietz, V. Rodriguez, I. Manek-Hönninger, A. Fargues, D. Descamps, A. Garcia
Thermal, optical and spectroscopic characterizations of borate laser crystals
J. Solid State Chem. 184 (2011) 441
- 446.
-
M. Dlouhá, J. Hejtmánek, Z. Jirák, K. Knížek, M. Veverka, S. Vratislav
Structure and Electric Transport in LaCo0.67Cu0.33O3
J. Superconductivity and Novel Magnetism 24 (2011) 747
- 751.
-
K. Knížek, J. Hejtmánek, M. Maryško, E. Šantavá, Z. Jirák, J. Buršík, K. Kirakci, P. Beran
Structure and properties of a novel cobaltate La0.30CoO2
J. Solid State Chem. 184 (2011) 2231
- 2237.
-
M. Maryško, Z. Jirák, K. Knížek, P. Novák, J. Hejtmánek, T. Naito, H. Sasaki, and H. Fujishiro
Thermally and field driven spin-state transitions in (Pr(1-y)Yy)Ca0.3CoO3
J. Appl. Phys. 109 (2011) 07E127-1
- 07E127-3.
-
Z. Sofer, D. Sedmidubský, Š. Huber, J. Hejtmánek, M. Maryško, K. Jurek, M. Mikulics
Flux growth of ZnO crystals doped by transition metals
J. Cryst. Growth 314 (2011) 123
- 128.
-
Z. Sofer, D. Sedmidubský, M. Moram, A. Macková, M. Maryško, J. Hejtmánek, C. Buchal, H. Hardtdegen, M. Václavů, V. Peřina, R. Groetzschel, M. Mikulics
Magnetism in GaN layers implanted by La, Gd, Dy and Lu
Thin Solid Films 519 (2011) 6120
- 6125.
-
P. Tomeš, D. Logvinovich, J. Hejtmánek, M. H. Aguirre, A. Weidenkaff
Magnetic influence on thermoelectric properties of CrO0.1N0.9
Acta Mater. 59 (2011) 1134
- 1140.
-
C. Candolfi, B. Lenoir, A. Dauscher, E. Guilmeau, and J. Hejtmánek
Transport and magnetic properties of Mo2.5Ru0.5Sb7-xTex
J. Appl. Phys. 107 (2010) 093709(1)
- 093709(7).
-
C. Candolfi, B. Lenoir, A. Dauscher, B. Malaman, E. Guilmeau, J. Hejtmanek, and J. Tobola
High thermoelectric power factor in Fe-substituted Mo3Sb7
Appl. Phys. Lett. 96 (2010) 262103(1)
- 262103(3).
-
C. Candolfi, J. Leszczynski, P. Masschelein, C. Chubilleau, B. Lenoir, A. Dauscher, E. Guilmeau, J. Hejtmánek, S. J. Clarke, R. I. Smith
Crystal Structure and High-Temperature Thermoelectric Properties of the Mo3-xRuxSb7 Compounds
J. Electron. Mater. 39online (2010) 0981(1)
- 0981(4).
-
M. Dlouhá, J. Hejtmánek, Z. Jirák, K. Knížek, P. Tomeš, S. Vratislav
Antiferromagnetic ordering in the double perovskites La2-xSrxCoRuO6
J. Magn. Magn. Mater. 322 (2010) 1189
- 1191.
-
J. Hejtmánek, E. Šantavá, K. Knížek, M. Maryško, and Z. Jirák, T. Naito, H. Sasaki, and H. Fujishiro
Metal-insulator transition and the Pr3+/Pr4+ valence shift in (Pr1-yYy)0.7Ca0.3CoO3
Phys. Rev. B 82 (2010) 165107(1)
- 165107(7).
-
K. Knížek, J. Hejtmánek, P. Novák, Z. Jirák
Charge transfer, valence, and the metal-insulator transition in Pr0.5Ca0.5CoO3
Phys. Rev. B 81 (2010) 155113(1)
- 155113(5).
-
K. Knížek, Z. Jirák, J. Hejtmánek, P. Novák
Transition from the diamagnetic insulator to ferromagnetic metal in La1-xSrxCoO3
J. Magn. Magn. Mater. 322 (2010) 1221
- 1223.
-
P. Tomeš, R. Robert, M. Trottmann, L. Bocher, M. H. Aguirre, A. Bitschi, J. Hejtmánek, A. Weidenkaff
Synthesis and Characterization of New Ceramic Thermoelectrics Implemented in a Thermoelectric Oxide Module
J. Electron. Mater. 39 online (2010) 1214(1)
- 1214(8).
-
P. Tomeš, A. Weidenkaff, J. Hejtmánek, K. Knížek
On the physical properties of Sr1-xNaxRuO3 (x = 0 - 0.19)
Solid State Sci. 12 (2010) 1112
- 1120.
-
L. Bocher, M. H. Aguirre, R. Robert, D. Logvinovich,
S. Bakardjieva, J. Hejtmánek, A. Weidenkaff
High-temperature stability, structure and thermoelectric properties
of CaMn1-xNbxO3 phases
Acta Mater. 57 (2009) 5667
- 5680.
-
Candolfi C., Lenoir B., Dauscher A., Guilmeau E., Hejtmánek J., Tobola J., Wiendlocha B., Kaprzyk S.
Transport properties of the Mo3Sb7 compound
Phys. Rev. B 79 (2009) 035114(1)
- 035114(6).
-
Candolfi C., Lenoir B., Dauscher A., Hejtmánek J., Tobola J.
Low-temperature galvanomagnetic, magnetic, and thermoelectric properties of Mo3Sb7-xTex(x=0.0, 0.3, 1.0, 1.6, and 1.8)
Phys. Rev. B 79 (2009) 235108(1)
- 235108(12).
-
C. Candolfi, B. Lenoir, A. Dauscher, J. Hejtmánek, J. Tobola
Electronic band structure, transport, and magnetic properties
of Mo3-xRuxSb7
Phys. Rev. B 80 (2009) 155127(1)
- 155127(10).
-
K. Knížek, J. Hejtmánek, Z. Jirák, P. Tomeš, P. Henry, G. André
Neutron diffraction and heat capacity studies of PrCoO3 and NdCoO3
Phys. Rev. B 79 (2009) 134103(1)
- 134103(7).
-
K. Knížek, Z. Jirák, J. Hejtmánek, P. Novák, Wei Ku,
GGA+U calculations of correlated spin excitations in LaCoO3
Phys. Rev. B 79 (2009) 014430(1)
- 014430(8).
-
Logvinovich D., Hejtmánek J., Knížek K., Maryško M., Homazava N., Tomeš P., Aguiar R., Ebbinghaus S. G., Reller A., Weidenkaff A.
On the magnetism, thermal- and electrical transport of SrMoO2N
J. Appl. Phys. 105 (2009) 023522(1)
- 023522(6).
-
J. Sablayrolles, V. Jubera, M. Delaigue, I. Manek-Hönninger, J. -P. Chaminade, J. Hejtmánek, R. Decourt, A. Garcia
Thermal properties and cw-laser operation of the ytterbium doped borate
Li6Y(BO3)3
Mater. Chem. Phys. 115 (2009) 512
- 515.
-
A. Baran, A. Zorkovská, A. Feher, J. Šebek, E. Šantavá, J. Hejtmánek, M. Veverka, I. Bradaric and M. Ružička
Low Temperature Anomalies in the Specific Heat and Magnetic Susceptibility of Na0.7CoO2 Samples
Acta Phys. Polon. A 113 (2008) 495
- 498.
-
J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško, M. Veverka, C. Autret
Valence and spin states in perovskites LaCo0.95M0.05O3 (M = Mg, Ga, Ti)
J. Magn. Magn. Mater. 320 (2008) 92
- 95.
-
J. Hejtmánek, K. Knížek, M. Maryško, Z. Jirák, D. Sedmidubský, Z. Sofer, V. Peřina, H. Hardtdegen, C. Buchal
On the magnetic properties of Gd implanted GAN
J. Appl. Phys. 103 (2008) 07D107(1)
- 07D107(3).
-
Z. Jirák, J. Hejtmánek, K. Knížek, M. Veverka
Electrical resistivity and thermopower measurements of the hole- and electron-doped cobaltites LnCoO3
Phys. Rev. B 78 (2008) 014432(1)
- 014432(8).
-
K. Knížek, Z. Jirák, J. Hejtmánek, P. Henry, G. André
Structural anomalies, spin transitions and charge disproportionation in LnCoO3
J. Appl. Phys. 103 (2008) 07B703(1)
- 07B703(3).
-
D. Logvinovich, M. H. Aguirre, J. Hejtmanek, R. Aguiar, S. G. Ebbinghaus, A. Reller, A. Weidenkaff
Phase formation, structural and microstructural characterization of novel oxynitride- perovskites synthesized by thermal ammonolysis of (Ca,Ba)MoO4 and (Ca,Ba)MoO3
J. Solid State Chem. 181 (2008) 2243
- 2249.
-
Z. Sofer, D. Sedmidubský, J. Stejskal, J. Hejtmánek, M. Maryško,
K. Jurek, M. Václavů, V. Havránek, A. Macková
Growth and characterization of GaN:Mn layers by MOVPE
J. Cryst. Growth 310 (2008) 5025
- 5027.
-
P. Tomeš, J. Hejtmánek, K. Knížek
On the La2-xSrxCoRuO6 double perovskites: Crystal structure, magnetic properties and transport.
Solid State Sci. 10 (2008) 486
- 490.
-
C. Candolfi, B. Lenoir, A. Dauscher, C. Bellouard, J. Hejtmánek, E. Šantavá, J. Tobola
Spin Fluctuations and Superconductivity in Mo3Sb7
Phys. Rev. Lett. 99 (2007) 037006(1)
- 037006(4).
-
A. Chichev, M. Dlouhá, S. Vratislav, J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško
Neutron diffraction study of Pr0.5Ca0.5CoO3-\gamma (γ=0 and 0.07)
Z. Kristallogr. 26 (2007) 435
- 440.
-
A. Chichev, J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško, M. Dlouhá, S. Vratislav
The low-temperature phase separation in Pr0.5Ca0.5CoO3
J. Magn. Magn. Mater. 316 (2007) e728
-
S. Hebert, D. Flahaut, C. Martin, S. Lemonnier, J. Noudem,
C. Goupil, A. Maignan, J. Hejtmánek
Thermoelectric properties of perovskites: Sign change of the Seebeck
coefficient and high temperature properties
Prog. Solid State Ch. 35 (2007) 457
- 467.
-
M. Miclau, J. Hejtmánek, R. Retoux, K. Knížek, Z. Jirák, R. Fresard, A. Maignan, S. Hebert, M. Hervieu, and C. Martin
Structural and Magnetic Transitions in CaMn1-xWxO3
Chem. Mater. 19 (2007) 4243
- 4251.
-
M. Puyet, A. Dauscher, B. Lenoir, C. Bellouard, C. Stiewe, E. Müller, J. Hejtmánek, J. Tobola
Influence of Ni on the thermoelectric properties of the partially filled calcium skutterudites CayCo4-xNixSb12
Phys. Rev. B 75 (2007) 245110(1)
- 245110(10).
-
O. Boffoue , A. Jacquot , R. Duclere , M. Guilloux-Viry , J. Hejtmánek , A. Dauscher , and B. Lenoir
Thermal conductivity of SrBi2Nb2O9 ferroelectric thin films
Appl. Phys. Lett. 89 (2006) 92904(1)
- 92904(3).
-
V. Chichev , M. Dlouhá , S. Vratislav , K. Knížek , J. Hejtmánek , M. Maryško , M. Veverka , Z. Jirák , O. Golosova , P. Kozlenko , and N. Savenko
Structural, magnetic, and transport properties of the single-layered perovskites La2-xSrxCoO4 (x=1.0-1.4)
Phys. Rev. B 74 (2006) 134414(1)
- 134414(8).
-
M. Hampl , A. Strejc , D. Sedmidubský , K. Růžička , J. Hejtmánek , and J. Leitner
Heat capacity, enthalpy and entropy of bismuth niobate and bismuth tantalate
J. Solid State Chem. 179 (2006) 77
- 80.
-
J. Hejtmánek, M. Veverka, K. Knížek, H. Fujishiro, S. Hebert, Y. Klein, A. Maignan, C. Bellouard, B. Lenoir,
Cobaltites as perspective thermoelectrics
Mat. Res. Soc. Symposium Proceedings 886, 35 (2006)
-
Y. Kashiwadaa, H. Fujishiro, Y. Fujine, M. Ikebe, and J. Hejtmánek
Metal insulator transition and phonon scattering mechanisms
in La1-xSrxCo3
Physica B 378-380 (2006) 529
- 531.
-
K. Knížek , Z. Jirák , J. Hejtmánek , and P. Novák
Character of the excited state of the Co3+ ion in LaCoO3
J. Phys.-Condens. Mat. 18 (2006) 3285
- 3297.
-
K. Knížek , Z. Jirák , J. Hejtmánek , M. Veverka , M. Maryško , C. Hauback , and H. Fjellvag
Structure and physical properties of YCoO3 at temperatures up to 1000 K
Phys. Rev. B 73 (2006) 214443(1)
- 214443(6).
-
A. Maignan , V. Caignaert , D. Pelloquin , S. Hébert , V. Pralong , J. Hejtmánek , and D. Khomskii
Spin, charge, and lattice coupling in triangular and Kagome sublattices of CoO4 tetrahedra: YbBaCo4O7+delta (delta=0,1)
Phys. Rev. B 74 (2006) 165110(1)
- 165110(5).
-
M. Puyet , C. Candolfi , L. Chaput , V. Da Ros , A. Dauscher , B. Lenoir , and J. Hejtmánek
Low-temperature thermal properties of n-type partially filled calcium skutterudites
J. Phys.-Condens. Mat. 18 (2006) 11301
- 11308.
-
M. Puyet , B. Lenoir , A. Dauscher , P. Pecheur , C. Bellouard , J. Tobola , and J. Hejtmánek
Electronic, transport, and magnetic properties of CaxCo4Sb12 partially filled skutterudites
Phys. Rev. B 73 (2006) 35126(1)
- 35126(12).
-
D. Sedmidubský, A. Strejc , O. Beneš , K. Růžička , J. Hejtmánek , P. Javorský , M. Nevřiva , and C. Martin
Energetics of charge order transition in Bi1-xSrxMnO3
J. Solid State Chem. 179 (2006) 3798
- 3804.
-
C. Autret, J. Hejtmánek, K. Knížek, M. Maryško, Z. Jirák, M. Dlouhá and S. Vratislav
Electric transport and magnetic properties of perovskites LaMn1-xCoxO3 up to 900 K
J. Phys.-Condens. Mat. 17 (2005) 1601
- 1616.
-
Yosuke Fujine, Hiroyuki Fujishiro, Yohei Kashiwada, Jiří Hejtmánek and Manabu Ikebe
Anomalous phonon scattering by Jahn–Teller active Co intermediate spins in LaCoO3 and doped LaCoO3
Physica B 359-361 (2005) 1360
- 1362.
-
Y. Klein , D. Pelloquin , S. Hebert , A. Maignan , and J. Hejtmanek
Thermoelectric [Sr-2(Bi,Co)(n-2)O-n](RS)[CoO2](1.8) layer cobaltities: The role of the intergrowth between the n=3 and n=4 terms
J. Appl. Phys. 98 (2005) 13701(1)
- 13701(5).
-
K. Knizek , Z. Jirak, J. Hejtmanek, M. Veverka, M. Marysko, G. Maris, T. M. Palstra
Structural anomalies associated with the electronic and spin transitions in LnCoO(3)
Eur. Phys. J. B 47 (2005) 213
- 220.
-
M. Puyet , A. Dauscher , B. Lenoir , M. Dehmas , C. Stiewe , E. Muller , and J. Hejtmanek
Beneficial effect of Ni substitution on the thermoelectric properties in partially filled CayCo4-xNixSb12 skutterudites
J. Appl. Phys. 97 (2005) 83712(1)
- 83712(4).
-
J. Hejtmanek , Z. Jirak , K. Knizek , M. Marysko , M. Veverka , and H. Fujishiro
Magnetism, structure and transport of Y1-xCaxCoO3 and La1-xBaxCoO3
J. Magn. Magn. Mater. 272 (2004) E283
-
J. Hejtmanek , Z. Jirak , K. Knizek , E. Pollert , C. Martin , and A. Maignan
Phase competition in Pr0.8-xLaxNa0.2Mn1-yMeyO3
J. Magn. Magn. Mater. 272 (2004) E287
-
N. Hudakova , K. Knizek , and J. Hejtmanek
The infrared properties of Bi2Y0.1Sr1.9CaCu2O8+delta superconductor
Physica C 406 (2004) 58
- 62.
-
Z. Jirák, J. Hejtmánek, K. Knížek, S. Krupička, M. Maryško
Effect of Cr doping in charge ordered Y1-xCaxMnO3 (x~0.5)
J. Magn. Magn. Mater. 272-276 (2004) E1029
-
K. Knížek, J. Hejtmánek, Z. Jirák, C. Martin, M. Hervieu, B. Raveau, G. André, F. Bourée
Structure, magnetism and transport properties of Pr1-xSrxMnO3 (x = 0.45 - 0.75) up to 1200 K
Chem. Mater. 16 (2004) 1104
- 1110.
-
K. Knizek , Z. Jirak , J. Hejtmanek , M. Marysko , C. Martin , A. Maignan , and M. Hervieu
The nanoscopic separation of magnetic phases in Cr-doped manganites Pr0.44Sr0.56MnO3
J. Magn. Magn. Mater. 272 (2004) E1085
-
E. Pollert , J. Hejtmanek , Z. Jirak , K. Knizek , M. Marysko , P. Doumerc , C. Grenier , and J. Etourneau
Influence of the structure on electric and magnetic properties of La0.8Na0.2Mn1-xCoxO3 perovskites
J. Solid State Chem. 177 (2004) 4564
- 4568.
-
D. Sedmidubsky , O. Benes , P. Beran , J. Hejtmanek , and M. Marysko
Magnetism, transport and charge order in Bi1-xSrxMnO3
J. Magn. Magn. Mater. 272 (2004) E285
-
D. Sedmidubsky , Z. Jirak , J. Hejtmanek , and M. Marysko
Mn-site doped Y1-xCaxMnO3 (x=0.3-0.4) - from spin glass to FM cluster formation
J. Magn. Magn. Mater. 272-76 (2004) 1323
- 1324.
-
J. Hejtmanek , K. Knizek , Z. Jirak , M. Hervieu , C. Martin , M. Nevriva , and P. Beran
Ordering phenomena and transport properties of Bi1/2Sr1/2MnO3 single crystals
J. Appl. Phys. 93 (2003) 7370
- 7372.
-
Z. Jirak , J. Hejtmanek , K. Knizek , M. Marysko , C. Martin , A. Maignan , and M. Hervieu
Magnetoresistive behavior of Cr-doped manganites Pr0.44Sr0.56MnO3
J. Appl. Phys. 93 (2003) 8083
- 8085.
-
M. Nevriva , P. Beran , D. Sedmidubsky , A. Strejc , J. Hejtmanek , C. Martin , O. Perez , S. Malo , and B. Raveau
Crystal growth of the Bi1-x(Sr,Ca)(x)MnO3 Manganites
SOL ST PHEN 90-91 (2003) 371 - 376
-
E. Pollert , J. Hejtmanek , Z. Jirak , K. Knizek , and M. Marysko
Influence of Co doping on properties of Pr0.8Na0.2Mn((1-y))CoyO3 perovskites
J. Solid State Chem. 174 (2003) 466
- 470.
-
M. Savosta , I. Kamenev , A. Borodin , P. Novak , M. Marysko , J. Hejtmanek , K. Dorr , and M. Sahana
Ferromagnetic insulating state in manganites: Mn-55 NMR study
Phys. Rev. B 67 (2003) 94403(1)
- 94403(9).
-
M. Dlouhá, S. Vratislav, Z. Jirák, J. Hejtmánek, K. Knížek, D. Sedmidubský
Structure and magnetic order in Y1-xCaxMnO3 (x = 0.3 and 0.5)
Appl. Phys. A-Mater. 74 (2002) S673
-
J. Hejtmanek , Z. Jirak , E. Pollert , D. Sedmidubsky , A. Strejc , C. Martin , A. Maignan , and V. Hardy
Two dimensional metallic conductivity in Pr1-xSrxMnO3 antiferromagnets
J. Appl. Phys. 91 (2002) 8275
- 8277.
-
J. Hejtmanek , E. Pollert , Z. Jirak , D. Sedmidubsky , A. Strejc , A. Maignan , C. Martin , V. Hardy , R. Kuzel , and Y. Tomioka
Magnetism and transport in Pr1-xSrxMnO3 single crystals (0.48 <= x <= 0.57)
Phys. Rev. B 66 (2002) 14426(1)
- 14426(8).
-
Z. Jirak , J. Hejtmanek , K. Knizek , M. Marysko , E. Pollert , M. Dlouha , S. Vratislav , R. Kuzel , and M. Hervieu
Structure and magnetism in the Pr1-xNaxMnO3 perovskites (0 <= x <= 0.2)
J. Magn. Magn. Mater. 250 (2002) 275
- 287.
-
Z. Jirak , C. Martin , M. Hervieu , and J. Hejtmanek
Charge and spin configurations in Pr1-xCaxMnO3 (x=0.5-0.75)
Appl. Phys. A-Mater. Sci. Process. 74 (2002) S1755 - S1757
-
E. Pollert , Z. Jirak , J. Hejtmanek , A. Strejc , R. Kuzel , and V. Hardy
Detailed study of the structural and magnetic transitions in Pr1-xSrxMnO3 single crystals (0.48 <= x <= 0.57)
J. Magn. Magn. Mater. 246 (2002) 290
- 296.
-
T. Satoh , Y. Kikuchi , K. Miyano , E. Pollert , J. Hejtmanek , and Z. Jirak
Irreversible photoinduced insulator-metal transition in charge ordered Pr0.75Na0.25MnO3
Phase Transit. 75 (2002) 935 - 940
-
T. Satoh , Y. Kikuchi , K. Miyano , E. Pollert , J. Hejtmanek , and Z. Jirak
Irreversible photoinduced insulator-metal transition in the Na-doped manganite Pr0.75Na0.25MnO3
Phys. Rev. B 65 (2002) 125103(1)
- 125103(4).
-
M. Savosta , A. Borodin , M. Marysko , Z. Jirak , J. Hejtmanek , and P. Novak
Ferromagnetic-antiferromagnetic transition in Pr0.51Sr0.49MnO3 manganite
Phys. Rev. B 65 (2002) 224418(1)
- 224418(4).
-
D. Sedmidubsky , J. Hejtmanek , M. Marysko , Z. Jirak , V. Hardy , and C. Martin
Spin glass properties of Y0.7Ca0.3MnO3 and Th0.35Ba0.37Ca0.28MnO3
J. Appl. Phys. 91 (2002) 8260
- 8262.
-
E. R. Buzin, W. Prellier, C. Simon, S. Mercone, B. Mercey, B. Raveau, J. Šebek, J. Hejtmánek
Control of the colossal magnetoresistance by strain effect in Nd0.5Ca0.5MnO3 thin films
Appl. Phys. Lett. 79 (2001) 647
- 649.
-
J. Hejtmánek, Z. Jirák, J. Šebek, A. Strejc, M. Hervieu
Magnetic phase diagram of the charge ordered manganite Pr0.8Na0.2MnO3
J. Appl. Phys. 89 (2001) 7413
- 7415.
-
Z. Jirak , J. Hejtmanek , E. Pollert , C. Martin , A. Maignan , B. Raveau , M. Savosta , Y. Tomioka , and Y. Tokura
Magnetic ground states in Pr1-xSrxMnO3 (x=0.48-0.75)
J. Appl. Phys. 89 (2001) 7404
- 7406.
-
S. Krupicka , Z. Jirak , J. Hejtmanek , M. Marysko , P. Novak , M. Savosta , and R. Sonntag
Phase separation in structural and magnetic transitions in Pr0.5Ca0.5-xSrxMnO3 (x=0.15 and 0.3)
J. Phys.-Condes. Matter 13 (2001) 6813 - 6834
-
Z. Jirak , J. Hejtmanek , K. Knizek , M. Marysko , V. Sima , and R. Sonntag
Ferromagnetic-antiferromagnetic transition in tetragonal La0.50Sr0.50MnO3
J. Magn. Magn. Mater. 217 (2000) 113
- 119.
-
C. Martin , A. Maignan , M. Hervieu , B. Raveau , and J. Hejtmanek
Extension of ferromagnetism and metallicity to electron-rich manganites by Ru-doping: Generation of new CMR oxides Sm0.2Ca0.8Mn1-xRuxO3
Eur. Phys. J. B 16 (2000) 469 - 474
-
C. Masset , C. Michel , A. Maignan , M. Hervieu , O. Toulemonde , F. Studer , B. Raveau , and J. Hejtmanek
Misfit-layered cobaltite with an anisotropic giant magnetoresistance: Ca3Co4O9
Phys. Rev. B 62 (2000) 166
- 175.
-
M. Savosta , J. Hejtmanek , Z. Jirak , M. Marysko , P. Novak , Y. Tomioka , and Y. Tokura
Magnetic and transport properties of Pr0.65Ca0.21Sr0.14MnO3 and Pr0.65Ba0.35MnO3 single crystals
Phys. Rev. B 61 (2000) 6896
- 6901.
-
M. Savosta , S. Karnachev , S. Krupicka , J. Hejtmanek , Z. Jirak , M. Marysko , and P. Novak
NMR evidence of the magnetic phase separation in Pr0.5Ca0.2Sr0.3MnO3 manganite
Phys. Rev. B 62 (2000) 545
- 549.
-
M. Savosta , P. Novak , M. Marysko , Z. Jirak , J. Hejtmanek , J. Englich , J. Kohout , C. Martin , and B. Raveau
Coexistence of antiferromagnetism and ferromagnetism in Ca1-xPrxMnO3 (x <= 0.1) manganites
Phys. Rev. B 62 (2000) 9532
- 9537.
-
S. Krupicka , M. Marysko , Z. Jirak , and J. Hejtmanek
Details of structural and magnetic transitions in Pr0.5Ca0.5-xSrxMnO3 perovskites
J. Magn. Magn. Mater. 206 (1999) 45
- 67.
-
K. Knizek , M. Veverka , E. Hadova , J. Hejtmanek , D. Sedmidubsky , and E. Pollert
Synthesis of HgBa2CuO4+delta by sol-gel method under controlled oxygen pressure; electron and thermal transport properties
Physica C 302 (1998) 290
- 298.
-
Z. Jirak , J. Hejtmanek , E. Pollert , M. Marysko , M. Dlouha , and S. Vratislav
Canted structures in the Mn3+/Mn4+ perovskites
J. Appl. Phys. 81 (1997) 5790
- 5792.
-
S. Vratislav , M. Dlouha , J. Hejtmanek , Z. Jirak , and K. Knizek
Structure properties and oxygen content in Y0.6Ca0.2Ba2Cu3Oy (y=6.03-6.89) by neutron diffraction
Physica B 234 (1997) 928
- 930.
-
J. Hejtmanek , Z. Jirak , K. Knizek , M. Dlouha , and S. Vratislav
Oxygen content and superconductivity in Y0.8Ca0.2Ba2Cu3Oy (y=6.03-6.89)
Phys. Rev. B 54 (1996) 16226
- 16233.
-
J. Hejtmánek, E. Pollert, D. Sedmidubský, P. Vašek, M. Nevřiva
Superconductivity and electric transport of Bi2+xSr2-yCuO6+δ single crystals
Physica C 264 (1996) 220
- 226.
-
V. Plecháček, J. Hejtmánek, D. Sedmidubský, K. Knížek, E. Pollert, Z. Janů, R. Tichý
MAGNETIC SHIELDING AND TRAPPING PROPERTIES OF BPSCCO SUPERCONDUCTING TUBES
IEEE Trans. Appl. Supercond. 5 (1995) 528
- 531.
-
J. Hejtmánek, M. Neviřva, E. Pollert, D. Sedmidubský, P. Vašek
Electrical transport and superconductivity of Bi2+xSr2-xCuO6+d single crystals
Physica C 235-240 (1994) 1389
- 1390.
-
D. Sedmidubský, E. Pollert, J. Hejtmánek, P. Vašek
Electric transport properties of Bi2-xSr2-yCu1O6+δ (x=y/3) solid solutions
Physica C 232 (1994) 104
- 110.
-
R. Tichý, M. Odehnal, V. Petříček, S. Šafrata, E. Pollert, J. Kamarád, J. Hejtmánek, O. Smrčková, D. Sýkorová
SQUID behavior at liquid nitrogen temperature in high-Tc superconductors of the type Y-Ba-Cu-O
J. Low Temp. Phys. 70 (1988) 187
- 190.