Zobrazeno 1 - 10
of 175
pro vyhledávání: '"J. Krempaský"'
Autor:
J. Krempaský, S. Muff, F. Bisti, M. Fanciulli, H. Volfová, A. P. Weber, N. Pilet, P. Warnicke, H. Ebert, J. Braun, F. Bertran, V. V. Volobuev, J. Minár, G. Springholz, J. H. Dil, V. N. Strocov
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Inα-GeTe, ferroelectric polarization acts to break inversion symmetry of the lattice and induce a strong Rashba-type spin splitting of the electronic band structure. Here, the authors study how this effect competes with Zeeman splitting due to ferro
Externí odkaz:
https://doaj.org/article/355c89f45f984239b1ddfb216d274ad6
Autor:
G. Kremer, T. Jaouen, B. Salzmann, L. Nicolaï, M. Rumo, C. W. Nicholson, B. Hildebrand, J. H. Dil, J. Minár, G. Springholz, J. Krempaský, C. Monney
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033115 (2020)
α-GeTe(111) is a noncentrosymmetric ferroelectric material for which a strong spin-orbit interaction gives rise to giant Rashba split states in the bulk and at the surface. The detailed dispersions of the surface states inside the bulk band gap rema
Externí odkaz:
https://doaj.org/article/f4a45fdfed1e4585bcef9b7c7581e008
Autor:
J. Krempaský, S. Muff, J. Minár, N. Pilet, M. Fanciulli, A. P. Weber, E. B. Guedes, M. Caputo, E. Müller, V. V. Volobuev, M. Gmitra, C. A. F. Vaz, V. Scagnoli, G. Springholz, J. H. Dil
Publikováno v:
Physical Review X, Vol 8, Iss 2, p 021067 (2018)
The control of the electron spin by external means is a key issue for spintronic devices. Using spin- and angle-resolved photoemission spectroscopy (SARPES) with three-dimensional spin detection, we demonstrate operando electrostatic spin manipulatio
Externí odkaz:
https://doaj.org/article/49f5e7eeb20f405692665bf257ae973d
Autor:
M. Štetina, J. KrempaskÝ
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 5, Iss 2, Pp 81-87 (2000)
It is shown that the existence of a multioscillatory and chaotic regime observed in the photosynthesis could be explained on the basis of logistic equations, i.e., using a discrete approach. Transforming known phenomenological differential equations
Externí odkaz:
https://doaj.org/article/82c88b6a05054481a704e807dfa152a7
Autor:
Milan Radovic, Ondřej Caha, J. Hugo Dil, Houke Chen, Laurent Nicolaï, J. Krempaský, Gunther Springholz, Martin Gmitra, E. B. Guedes, J. Minár, Mauro Fanciulli, Marco Caputo, Valentine V. Volobuev
Publikováno v:
Physical Review Letters
Physical Review Letters, 2021, 126 (20), pp.206403. ⟨10.1103/PhysRevLett.126.206403⟩
Physical Review Letters, 2021, 126 (20), pp.206403. ⟨10.1103/PhysRevLett.126.206403⟩
Ferroelectric GeTe is unveiled to exhibit an intriguing multiple non-trivial topology of the electronic band structure due to the existence of triple-point and type-II Weyl fermions, which goes well beyond the giant Rashba spin splitting controlled b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7550569e68a7b572d91072f6037ddcd4
https://pubmed.ncbi.nlm.nih.gov/34110214
https://pubmed.ncbi.nlm.nih.gov/34110214
Autor:
C. W. Nicholson, Laurent Nicolaï, Jan Minár, G. Springholz, B. Salzmann, Jan Hugo Dil, M. Rumo, J. Krempaský, Thomas Jaouen, B. Hildebrand, Geoffroy Kremer, Claude Monney
Publikováno v:
Physical Review Research. 2
This paper shows how the detailed dispersion of the giant Rashba split surface states in the ferroelectric \ensuremath{\alpha}--GeTe(111) can be resolved by static ARPES and surface potassium doping. The authors further confirm the Rashba mechanism f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee710393bf2da7462e51fbe47df264ab
https://doi.org/10.1103/physrevresearch.2.033115
https://doi.org/10.1103/physrevresearch.2.033115
Autor:
Jaime Sánchez-Barriga, Fumio Komori, Laurent Nicolaï, Martin Gmitra, Mauro Fanciulli, Jan Minár, Kenta Kuroda, J. Hugo Dil, Valentine V. Volobuev, Henrieta Volfová, Ondřej Caha, J. Krempaský, Koichiro Yaji, Gunther Springholz, Shik Shin
By measuring the spin polarization of GeTe films as a function of light polarization we observed that the bulk states are fully spin polarized in the initial state, in strong contrast with observations for other systems with a strong spin orbit inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::842bf920e108e467315e3815ea2f97ff
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=102121
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=102121
Akademický článek
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Akademický článek
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Autor:
V. V. Volobuiev, François Bertran, Wilayat Khan, Stefan Muff, G. Springholz, Matthias Muntwiler, Vladimir N. Strocov, Jan Hugo Dil, Jan Minár, J. Krempaský, N. Pilet, A. P. Weber, Mauro Fanciulli
Germanium telluride features special spin-electric effects originating from spin-orbit coupling and symmetry breaking by the ferroelectric lattice polarization, which opens up many prospectives for electrically tunable and switchable spin electronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5c6f7db4d376f46d156af66f0f55e0
http://hdl.handle.net/11025/39565
http://hdl.handle.net/11025/39565