Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Gunther, Springholz"'
Autor:
Ruben Dario Gonzalez Betancourt, Jan Zubáč, Kevin Geishendorf, Philipp Ritzinger, Barbora Růžičková, Tommy Kotte, Jakub Železný, Kamil Olejník, Gunther Springholz, Bernd Büchner, Andy Thomas, Karel Výborný, Tomas Jungwirth, Helena Reichlová, Dominik Kriegner
Publikováno v:
npj Spintronics, Vol 2, Iss 1, Pp 1-9 (2024)
Abstract Recently, MnTe was established as an altermagnetic material that hosts spin-polarized electronic bands as well as anomalous transport effects like the anomalous Hall effect. In addition to these effects arising from altermagnetism, MnTe also
Externí odkaz:
https://doaj.org/article/41c4d19adb6b4324b332d1e0bc4d9b1f
Autor:
Juraj Krempaský, Gunther Springholz, Sunil Wilfred D’Souza, Ondřej Caha, Martin Gmitra, Andreas Ney, C. A. F. Vaz, Cinthia Piamonteze, Mauro Fanciulli, Dominik Kriegner, Jonas A. Krieger, Thomas Prokscha, Zaher Salman, Jan Minár, J. Hugo Dil
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract The interplay between spin-orbit interaction and magnetic order is one of the most active research fields in condensed matter physics and drives the search for materials with novel, and tunable, magnetic and spin properties. Here we report o
Externí odkaz:
https://doaj.org/article/c75d66577d7546d6906cb85d1e667259
Autor:
Geoffroy Kremer, Julian Maklar, Laurent Nicolaï, Christopher W. Nicholson, Changming Yue, Caio Silva, Philipp Werner, J. Hugo Dil, Juraj Krempaský, Gunther Springholz, Ralph Ernstorfer, Jan Minár, Laurenz Rettig, Claude Monney
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-6 (2022)
The ferroelectric material α-GeTe(111) is an excellent playground for spin-to charge conversion due to its strong Rashba coupling. Here, the authors reveal an ultrafast modulation of its Rashba coupling on the femtosecond timescale.
Externí odkaz:
https://doaj.org/article/1369842500d94b9ab5c81d815bdf1cc8
Autor:
Mahdi Hajlaoui, Stefano Ponzoni, Michael Deppe, Tobias Henksmeier, Donat Josef As, Dirk Reuter, Thomas Zentgraf, Gunther Springholz, Claus Michael Schneider, Stefan Cramm, Mirko Cinchetti
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Abstract Quantum well (QW) heterostructures have been extensively used for the realization of a wide range of optical and electronic devices. Exploiting their potential for further improvement and development requires a fundamental understanding of t
Externí odkaz:
https://doaj.org/article/0679b3ef16534d6b8c5fbd41db5044c3
Autor:
Alexandra V. Galeeva, Dmitry A. Belov, Aleksei S. Kazakov, Anton V. Ikonnikov, Alexey I. Artamkin, Ludmila I. Ryabova, Valentine V. Volobuev, Gunther Springholz, Sergey N. Danilov, Dmitry R. Khokhlov
Publikováno v:
Nanomaterials, Vol 11, Iss 12, p 3207 (2021)
Topological crystalline insulators form a class of semiconductors for which surface electron states with the Dirac dispersion relation are formed on surfaces with a certain crystallographic orientation. Pb1−xSnxTe alloys belong to the topological c
Externí odkaz:
https://doaj.org/article/dc3ab8fd6e8546d99201bfe45e1023a5
Autor:
Partha S. Mandal, Gunther Springholz, Valentine V. Volobuev, Ondrej Caha, Andrei Varykhalov, Evangelos Golias, Günther Bauer, Oliver Rader, Jaime Sánchez-Barriga
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Transitions between topological phases of matter protected by different symmetries remain rare. Here, Mandal et al. report a quantum phase transition from a topological crystalline insulator to a Z2 topological insulator by doping Bi into Pb1-x Sn x
Externí odkaz:
https://doaj.org/article/a699d5d3688a40f9aae27dc5532046b7
Autor:
Badih A. Assaf, Thanyanan Phuphachong, Valentine V. Volobuev, Günther Bauer, Gunther Springholz, Louis-Anne de Vaulchier, Yves Guldner
Publikováno v:
npj Quantum Materials, Vol 2, Iss 1, Pp 1-7 (2017)
Topological matter: magnetooptical characterization Opening a gap in a Dirac fermion system leads to the formation of a trivial or a non-trivial phase. A non-trivial phase exhibits conductive surface or edge states, and can be attributed to a non-zer
Externí odkaz:
https://doaj.org/article/e1a3818f22da4008abe9cf58435c14c9
Autor:
Changqing Zhu, Patrick Pilch, Anneke Reinold, Dennis Kudlacik, Gunther Springholz, Alberta Bonanni, Marc Assmann, Mirko Cinchetti, Zhe Wang
Publikováno v:
Physical Review Materials. 7
We report on time-resolved optical and terahertz ultrafast spectroscopy of charge-carrier dynamics in the room-temperature antiferromagnetic semiconductor $\alpha $-MnTe. By optically pumping the system with 1.55 eV photons at room temperature, we ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::873f405d814b6b0a0d1536564d9df7bc
https://doi.org/10.1103/physrevmaterials.7.054601
https://doi.org/10.1103/physrevmaterials.7.054601
Autor:
Juraj Krempaský, Mauro Fanciulli, Laurent Nicolaï, Jan Minár, Henrieta Volfová, Ondřej Caha, Valentine V. Volobuev, Jaime Sánchez-Barriga, Martin Gmitra, Koichiro Yaji, Kenta Kuroda, Shik Shin, Fumio Komori, Gunther Springholz, J. Hugo Dil
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 013107 (2020)
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://doaj.org/article/b705311f24e24488a736fc52ec527d57
Autor:
Dominik Kriegner, Gunther Springholz, Carsten Richter, Nicolas Pilet, Elisabeth Müller, Marie Capron, Helmut Berger, Václav Holý, J. Hugo Dil, Juraj Krempaský
Publikováno v:
Crystals, Vol 9, Iss 7, p 335 (2019)
Ferroelectric materials are used in actuators or sensors because of their non-volatile macroscopic electric polarization. GeTe is the simplest known diatomic ferroelectric endowed with exceedingly complex physics related to its crystalline, amorphous
Externí odkaz:
https://doaj.org/article/f8420e614707420f9f758532ceb54163