Personal information

Czech Republic

Biography

Based at the Department of Dielectrics of the Institute of Physics, ASCR Prague.
Specialized in the field of microwave dielectric spectroscopy and in inelastic neutron scattering. Spent two years in total at the Institute Laue-Langevin, Grenoble, France as a PhD student and research scientist. Recipient of the Otto Wichterle Award.

Activities

Employment (1)

FZU – Institute of Physics of the Czech Academy of Sciences: Prague, CZ

2003-09-01 to present | Researcher (Dielectrics)
Employment
Source: Self-asserted source
Martin Kempa

Education and qualifications (1)

Charles University: Prague, CZ

2003-09-01 to 2008-09-01 | Ph.D.
Education
Source: Self-asserted source
Martin Kempa

Works (50 of 112)

Items per page:
Page 1 of 3

A Frustrated Antipolar Phase Analogous to Classical Spin Liquids

Advanced Materials
2024-12 | Journal article
Contributors: Gaël Bastien; Dalibor Repček; Adam Eliáš; Andrej Kancko; Quentin Courtade; Tetiana Haidamak; Maxim Savinov; Viktor Bovtun; Martin Kempa; Karel Carva et al.
Source: check_circle
Crossref

Microwave magnetic excitations in U-type hexaferrite Sr4CoZnFe36O60 ceramics

Journal of Applied Physics
2024-08-21 | Journal article
Contributors: M. Kempa; V. Bovtun; D. Repček; J. Buršík; C. Kadlec; S. Kamba
Source: check_circle
Crossref

Two displacive ferroelectric phase transitions in multiferroic quadruple perovskite BiMn7O12

Physical Review B
2024-04-25 | Journal article
Contributors: A. Maia; M. Kempa; V. Bovtun; R. Vilarinho; C. Kadlec; J. Agostinho Moreira; A. A. Belik; P. Proschek; S. Kamba
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Crossref

Broadband magnetic and dielectric properties of U-type hexaferrite Sr4CoZnFe36O60

Journal of Magnetism and Magnetic Materials
2024-01 | Journal article
Contributors: V. Bovtun; M. Kempa; D. Repček; M. Savinov; J. Buršík; O. Heczko; J. Drahokoupil; S. Kamba
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Crossref

Enhancement of microwave fields in pulse EPR of quantum paraelectrics

Applied Physics Letters
2023-11-20 | Journal article
Contributors: V. Laguta; V. Bovtun; M. Kempa; O. Laguta; P. Neugebauer; M. Šimėnas; J. Banys; S. Kamba
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Crossref

High-frequency dielectric properties of K1-Li TaO3 ceramics compared to crystals

Journal of the European Ceramic Society
2023-09 | Journal article
Contributors: Dmitry Nuzhnyy; Jan Petzelt; Viktor Bovtun; Martin Kempa; Dalibor Repček; Alexander Tkach; Paula M. Vilarinho; Stanislav Kamba
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Crossref

Can the ferroelectric soft mode trigger an antiferromagnetic phase transition?

Journal of the European Ceramic Society
2023-06 | Journal article
Contributors: André Maia; Christelle Kadlec; Maxim Savinov; Rui Vilarinho; Joaquim Agostinho Moreira; Viktor Bovtun; Martin Kempa; Martin Míšek; Jiří Kaštil; Andriy Prokhorov et al.
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Crossref

Unusual dynamics of the ferroelectric phase transition in K1−xLixTaO3 crystals

Physical Review B
2022-05-09 | Journal article
Contributors: D. Nuzhnyy; V. Bovtun; E. Buixaderas; J. Petzelt; M. Savinov; M. Kempa; M. Paściak; I. Rafalovskyi; V. Chelod Paingad; P. Kužel et al.
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Crossref

Synthesis and broadband dielectric-infrared spectroscopy of La1-xSrxMnO3@BaTiO3 nanocomposite

Materials Research Bulletin
2021-12 | Journal article
Contributors: Dmitry Nuzhnyy; Viktor Bovtun; Maxim Savinov; Martin Kempa; Jan Petzelt; Ondřej Kaman; Mariana Klementová; Jarmila Kuličková; Zdeněk Jirák
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Crossref

Ferroelectric soft mode and microwave dielectric relaxation in BaTiO3−PbMg1/3Nb2/3O3 ceramics

Physical Review Materials
2021-01-12 | Journal article
Contributors: V. Bovtun; D. Nuzhnyy; M. Kempa; T. Ostapchuk; V. Skoromets; J. Suchanicz; P. Czaja; J. Petzelt; S. Kamba
Source: check_circle
Crossref

Metal-insulator transition in (Pr,Y)0.7Ca0.3CoO3 in the far-infrared spectral region

Physical Review B
2020-11-03 | Journal article
Contributors: H. Němec; C. Kadlec; V. Goian; F. Borodavka; V. Železný; M. Kempa; K. Knížek; J. Hejtmánek; J. Buršík; M. Soroka
Source: check_circle
Crossref

Magnetoelectric coupling in multiferroic Z-type hexaferrite revealed by electric-field-modulated magnetic resonance studies

Journal of Materials Science
2020-06-19 | Journal article
Contributors: Valentin Laguta; Martin Kempa; Viktor Bovtun; Josef Buršík; Kun Zhai; Young Sun; Stanislav Kamba
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Crossref

Dynamics of mesoscopic polarization in the uniaxial tetragonal tungsten bronze (SrxBa1−x)Nb2O6

Physical Review B
2019-11-27 | Journal article
Contributors: Elena Buixaderas; Martin Kempa; Šarūnas Svirskas; Christelle Kadlec; Viktor Bovtun; Maxim Savinov; Marek Paściak; Jan Dec
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Crossref

Composition dependent microwave properties of dielectric-conductor nanocomposites

Phase Transitions
2018 | Journal article
EID:

2-s2.0-85052080899

Contributors: Bovtun, V.; Kempa, M.; Nuzhnyy, D.; Petzelt, J.; Borisova, O.; Machulianskyi, O.; Yakymenko, Y.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
Preferred source (of 2)‎

Microwave absorbing and shielding properties of inhomogeneous conductors and high-loss dielectrics

Ferroelectrics
2018 | Journal article
EID:

2-s2.0-85061355607

Contributors: Bovtun, V.; Kempa, M.; Nuzhnyy, D.; Petzelt, J.; Borisova, O.; Machulianskyi, O.; Yakymenko, Y.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Multiple polarization mechanisms across the ferroelectric phase transition of the tetragonal tungsten-bronze Sr0.35Ba0.69Nb2 O6.04

Physical Review Materials
2018 | Journal article
EID:

2-s2.0-85060591505

Contributors: Buixaderas, E.; Kempa, M.; Bovtun, V.; Kadlec, C.; Savinov, M.; Borodavka, F.; Vaněk, P.; Steciuk, G.; Palatinus, L.; Dec, J.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Wide range dielectric and infrared spectroscopy of (Nb+In) co-doped rutile ceramics

Physical Review Materials
2018 | Journal article
EID:

2-s2.0-85059566426

Contributors: Bovtun, V.; Petzelt, J.; Kempa, M.; Nuzhnyy, D.; Savinov, M.; Kamba, S.; Yee, S.M.M.; Crandles, D.A.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Fast polarization mechanisms in the uniaxial tungsten-bronze relaxor strontium barium niobate SBN-81

Scientific Reports
2017 | Journal article
EID:

2-s2.0-85042388760

Contributors: Buixaderas, E.; Kadlec, C.; Kempa, M.; Bovtun, V.; Savinov, M.; Bednyakov, P.; Hlinka, J.; Dec, J.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Infrared, terahertz, and microwave spectroscopy of the soft and central modes in Pb(M g1/3 N b2/3) O3

Physical Review B
2017 | Journal article
EID:

2-s2.0-85039162730

Contributors: Nuzhnyy, D.; Petzelt, J.; Bovtun, V.; Kempa, M.; Kamba, S.; Hlinka, J.; Hehlen, B.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Spin-phonon coupling in epitaxial S r0.6 B a0.4Mn O3 thin films

Physical Review B
2017 | Journal article
EID:

2-s2.0-85013036612

Contributors: Goian, V.; Langenberg, E.; Marcano, N.; Bovtun, V.; Maurel, L.; Kempa, M.; Prokscha, T.; Kroupa, J.; Algarabel, P.A.; Pardo, J.A. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Unusual ferroelectric and magnetic phases in multiferroic 2H-BaMnO3 ceramics

Physical Review B
2017 | Journal article
EID:

2-s2.0-85024381588

Contributors: Kamba, S.; Nuzhnyy, D.; Savinov, M.; Tolédano, P.; Laguta, V.; Brázda, P.; Palatinus, L.; Kadlec, F.; Borodavka, F.; Kadlec, C. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Broad-band dielectric response of 0.5Ba(Ti<inf>0.8</inf>Zr<inf>0.2</inf>)O<inf>3</inf>–0.5(Ba<inf>0.7</inf>Ca<inf>0.3</inf>)TiO<inf>3</inf>piezoceramics: soft and central mode behaviour

Phase Transitions
2016 | Journal article
EID:

2-s2.0-84976351074

Contributors: Kamba, S.; Simon, E.; Skoromets, V.; Bovtun, V.; Kempa, M.; Pokorný, J.; Savinov, M.; Koruza, J.; Malič, B.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Broadband dielectric spectroscopy of dielectric-conductor composites: Characterization of physical properties and application potential

ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
2016 | Conference paper
EID:

2-s2.0-85018560582

Contributors: Bovtun, V.; Petzelt, J.; Nuzhnyy, D.; Kempa, M.; Savinov, M.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

Broadband dielectric spectroscopy of standard and core-shell BaTiO<inf>3</inf>-NiO ceramic composites compared to the BaTiO<inf>3</inf> ceramics

Ferroelectrics
2016 | Journal article
EID:

2-s2.0-84991466230

Contributors: Nuzhnyy, D.; Petzelt, J.; Bovtun, V.; Ostapchuk, T.; Savinov, M.; Kempa, M.; Bednyakov, P.; Fernández-Garciá, L.; Rodriguez-Suarez, T.; Menendéz, J.L.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Electric-field influence on the neutron diffuse scattering near the ferroelectric transition of Sr <inf>0.61</inf> Ba <inf>0.39</inf> Nb <inf>2</inf> O <inf>6</inf>

Phase Transitions
2016 | Journal article
EID:

2-s2.0-84973138139

Contributors: Ondrejkovic, P.; Kempa, M.; Savinov, M.; Bednyakov, P.; Kulda, J.; Bourges, P.; Dec, J.; Hlinka, J.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Electromagnon in the Z -type hexaferrite (BaxSr1-x)3Co2Fe24 O41

Physical Review B
2016 | Journal article
EID:

2-s2.0-84978389105

Contributors: Kadlec, F.; Kadlec, C.; Vít, J.; Borodavka, F.; Kempa, M.; Prokleška, J.; Buršík, J.; Uhrecký, R.; Rols, S.; Chai, Y.S. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Lattice dynamics and domain wall oscillations of morphotropic Pb(Zr,Ti) O3 ceramics

Physical Review B
2016 | Journal article
EID:

2-s2.0-84985996054

Contributors: Buixaderas, E.; Bovtun, V.; Kempa, M.; Nuzhnyy, D.; Savinov, M.; Vanek, P.; Gregora, I.; Malic, B.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Spectroscopic studies of the ferroelectric and magnetic phase transitions in multiferroic Sr<inf>1-x</inf>Ba<inf>x</inf>MnO<inf>3</inf>

Journal of Physics Condensed Matter
2016 | Journal article
EID:

2-s2.0-84963591484

Contributors: Goian, V.; Kadlec, F.; Kadlec, C.; Dabrowski, B.; Kolesnik, S.; Chmaissem, O.; Nuzhnyy, D.; Kempa, M.; Bovtun, V.; Savinov, M. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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THz spectroscopic investigations of magnetodielectric coupling in Sr0.55Ba0.45MnO3 ceramics

43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
2016 | Journal article
Contributors: Kadlec, Filip; Goian, Veronica; Kadlec, Christelle; Dabrowski, Bogdan; Nuzhnyy, Dmitrii; Kempa, Martin; Bovtun, Viktor; Savinov, Maxim; Hejtmanek, Jiri; Prokleska, Jan et al.
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THz spectroscopic investigations of magnetodielectric coupling in Sr<inf>0.55</inf>Ba<inf>0.45</inf>MnO<inf>3</inf>ceramics

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
2016 | Conference paper
EID:

2-s2.0-85006165382

Contributors: Kadlec, F.; Goian, V.; Kadlec, C.; Dabrowski, B.; Nuzhnyy, D.; Kempa, M.; Bovtun, V.; Savinov, M.; Hejtmanek, J.; Prokleska, J. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

Получение и физические свойства нанокомпозитов: опаловых матриц - оксидов титана

Наноиндустрия
2016 | Journal article
Contributors: Martin Kempa
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СТРОЕНИЕ, МАГНИТНЫЕ И ДИЭЛЕКТРИЧЕСКИЕ СВОЙСТВА НАНОКОМПОЗИТОВ: ОПАЛОВЫЕ МАТРИЦЫ - ВАНАДАТЫ РЕДКОЗЕМЕЛЬНЫХ ЭЛЕМЕНТОВ

Нано- И Микросистемная Техника
2016 | Journal article
Contributors: Martin Kempa
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Web of Science Researcher Profile Sync

Broadband dielectric spectra and microwave absorbing / shielding efficiency of dielectric-conductor nanocomposites

ICCM International Conferences on Composite Materials
2015 | Conference paper
EID:

2-s2.0-85053166053

Contributors: Bovtun, V.; Borisova, A.; Kempa, M.; Machulyansky, A.; Nuzhnyy, D.; Savinov, M.; Petzelt, J.; Yakymenko, Y.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

High-Frequency Dielectric Properties of Nanocomposite and Ceramic Titanates

IEEE Transactions on Nanotechnology
2015 | Journal article
EID:

2-s2.0-84929179149

Contributors: Rinkevich, A.B.; Kuznetsov, E.A.; Perov, D.V.; Bovtun, V.; Kempa, M.; Nuzhnyy, D.; Savinov, M.; Samoilovich, M.I.; Klescheva, S.M.; Ryabkov, Y.I. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
Preferred source (of 2)‎

Lattice dynamics and dielectric spectroscopy of BZT and NBT lead-free perovskite relaxors-comparison with lead-based relaxors

Phase Transitions
2015 | Journal article
EID:

2-s2.0-84924631746

Contributors: Petzelt, J.; Nuzhnyy, D.; Bovtun, V.; Kempa, M.; Savinov, M.; Kamba, S.; Hlinka, J.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Spin and lattice excitations of multiferroic (Ba0.2Sr0.8)(3)Co2Fe24O41 in the THz range

2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)
2015 | Journal article
Contributors: Stanislav Kamba
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Spin and lattice excitations of multiferroic (Ba<inf>0.2</inf>Sr<inf>0.8</inf>)<inf>3</inf>Co<inf>2</inf>Fe<inf>24</inf>O<inf>41</inf> in the THz range

IRMMW-THz 2015 - 40th International Conference on Infrared, Millimeter, and Terahertz Waves
2015 | Conference paper
EID:

2-s2.0-84969194748

Contributors: Kadlec, F.; Kadlec, C.; Buršík, J.; Vít, J.; Goian, V.; Prokleška, J.; Kempa, M.; Borodavka, F.; Rols, S.; Kamba, S.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

Broadband dielectric spectroscopy of Ba(Zr,Ti)O<inf>3</inf>: Dynamics of relaxors and diffuse ferroelectrics

Ferroelectrics
2014 | Journal article
EID:

2-s2.0-84908887650

Contributors: Petzelt, J.; Nuzhnyy, D.; Savinov, M.; Bovtun, V.; Kempa, M.; Ostapchuk, T.; Hlinka, J.; Canu, G.; Buscaglia, V.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Conductivity of metal (Al, Cu)-dielectric composites and modeling of the single- and multi-layer composite coatings for microwave applications

2014 IEEE 34th International Scientific Conference on Electronics and Nanotechnology, ELNANO 2014 - Conference Proceedings
2014 | Conference paper
EID:

2-s2.0-84906545840

Contributors: Borisova, A.; Bondar, B.; MacHulyansky, A.; Rodionov, M.; Yakimenko, Y.; Bovtun, V.; Kempa, M.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

Conductivity of Metal (Al, Cu)-Dielectric Composites and Modeling of the Single-and Multi-layer Composite Coatings for Microwave Applications

IEEE 34TH INTERNATIONAL CONFERENCE ON ELECTRONICS AND NANOTECHNOLOGY (ELNANO)
2014 | Journal article
Contributors: Martin Kempa
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Dynamics of nanoscale polarization fluctuations in a uniaxial relaxor

Physical Review Letters
2014 | Journal article
EID:

2-s2.0-84908042657

Contributors: Ondrejkovic, P.; Kempa, M.; Kulda, J.; Frick, B.; Appel, M.; Combet, J.; Dec, J.; Lukasiewicz, T.; Hlinka, J.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Lattice dynamics of NaI studied by inelastic neutron scattering: Absence of thermally induced discrete breathers

Physical Review B - Condensed Matter and Materials Physics
2014 | Journal article
EID:

2-s2.0-84897681912

Contributors: Kempa, M.; Ondrejkovic, P.; Bourges, P.; Marton, P.; Hlinka, J.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Modeling of metal-dielectric nanocomposite coatings with ferromagnetic inclusions for electromagnetic protection of electronic devices

2014 IEEE 34th International Scientific Conference on Electronics and Nanotechnology, ELNANO 2014 - Conference Proceedings
2014 | Conference paper
EID:

2-s2.0-84906569373

Contributors: Borisova, A.; MacHulyansky, A.; Yakimenko, Y.; Bondar, B.; Bovtun, V.; Kempa, M.; Savinov, M.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Possible coupling between magnons and phonons in multiferroic CaMn7 O12

Physical Review B - Condensed Matter and Materials Physics
2014 | Journal article
EID:

2-s2.0-84907231508

Contributors: Kadlec, F.; Goian, V.; Kadlec, C.; Kempa, M.; Vaněk, P.; Taylor, J.; Rols, S.; Prokleška, J.; Orlita, M.; Kamba, S.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Spin and lattice vibrations of CaMn7O12 in the THz range

39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
2014 | Journal article
Contributors: Stanislav Kamba
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Spin and lattice vibrations of CaMn<inf>7</inf>O<inf>12</inf>in the THz range

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
2014 | Conference paper
EID:

2-s2.0-84911958074

Contributors: Kadlec, F.; Goian, V.; Kadlec, C.; Kempa, M.; Rols, S.; Taylor, J.; Orlita, M.; Kamba, S.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

Strong spin-phonon coupling in infrared and Raman spectra of SrMnO 3

Physical Review B - Condensed Matter and Materials Physics
2014 | Journal article
EID:

2-s2.0-84897713828

Contributors: Kamba, S.; Goian, V.; Skoromets, V.; Hejtmánek, J.; Bovtun, V.; Kempa, M.; Borodavka, F.; Vaněk, P.; Belik, A.A.; Lee, J.H. et al.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier
grade
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Synthesis and Dielectric Properties of BaTi1-xZrxO3-based Ceramic and Film Materials

IEEE 34TH INTERNATIONAL CONFERENCE ON ELECTRONICS AND NANOTECHNOLOGY (ELNANO)
2014 | Journal article
Contributors: Martin Kempa
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Synthesis and dielectric properties of BaTi<inf>1-x</inf>Zr <inf>x</inf>O<inf>3</inf>-based ceramic and film materials

2014 IEEE 34th International Scientific Conference on Electronics and Nanotechnology, ELNANO 2014 - Conference Proceedings
2014 | Conference paper
EID:

2-s2.0-84906535714

Contributors: Suslov, A.; Durilin, D.; Ovchar, O.; Belous, A.; Bovtun, V.; Kempa, M.; Jancar, B.; Spreitzer, M.
Source: Self-asserted source
Martin Kempa via Scopus - Elsevier

ДИЭЛЕКТРИЧЕСКИЕ СВОЙСТВА ОПАЛОВЫХ МАТРИЦ С ЗАПОЛНЕНИЕМ МЕЖСФЕРИЧЕСКИХ НАНОПОЛОСТЕЙ ОКСИДОМ ЦИНКА

Нано- И Микросистемная Техника
2014 | Journal article
Contributors: Martin Kempa
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