Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Jaime Sanchez-Barriga"'
Autor:
Alexander S. Frolov, Dmitry Yu. Usachov, Artem V. Tarasov, Alexander V. Fedorov, Kirill A. Bokai, Ilya Klimovskikh, Vasily S. Stolyarov, Anton I. Sergeev, Alexander N. Lavrov, Vladimir A. Golyashov, Oleg E. Tereshchenko, Giovanni Di Santo, Luca Petacсia, Oliver J. Clark, Jaime Sanchez-Barriga, Lada V. Yashina
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-11 (2024)
Abstract The ability to finely tune the properties of magnetic topological insulators (TIs) is crucial for quantum electronics. We studied solid solutions with a general formula GexMn1-xBi2Te4 between two isostructural Z2 TIs, magnetic MnBi2Te4 and n
Externí odkaz:
https://doaj.org/article/c65cb78262aa417ab488ad7169b66ddc
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Materials with time reversal and inversion symmetry have a bulk band structure that is spin degenerate, however, they can still exhibit a hidden spin-polarization when probed in a specific way. Here, using angle and spin resolved photoemission, Clark
Externí odkaz:
https://doaj.org/article/2824df2e15a84e8eb9049d910e2d1b69
Autor:
Sergey Borisenko, Alexander Fedorov, Andrii Kuibarov, Marco Bianchi, Volodymyr Bezguba, Paulina Majchrzak, Philip Hofmann, Peter Baumgärtel, Vladimir Voroshnin, Yevhen Kushnirenko, Jaime Sánchez-Barriga, Andrei Varykhalov, Ruslan Ovsyannikov, Igor Morozov, Saicharan Aswartham, Oleh Feia, Luminita Harnagea, Sabine Wurmehl, Alexander Kordyuk, Alexander Yaresko, Helmuth Berger, Bernd Büchner
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-6 (2022)
The Fermi surface is related to the energy distribution of electrons in a solid, and governs physical properties of metals and semiconductors. A new type of angle-resolved photoemission spectroscopy, probing the Fermi surface and combining short reco
Externí odkaz:
https://doaj.org/article/a8e6ebbf164a40ccb6e937aad6dd707b
Autor:
Oliver J. Clark, Friedrich Freyse, Irene Aguilera, Alexander S. Frolov, Andrey M. Ionov, Sergey I. Bozhko, Lada V. Yashina, Jaime Sánchez-Barriga
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-11 (2021)
Understanding the coupling between spin-polarised topological surface states and the bulk provides insight into ultrafast spin dynamics. Here, this coupling is shown to be accompanied by a large mass enhancement in the Sb(111) surface electronic stru
Externí odkaz:
https://doaj.org/article/e31f23ce0d1b450c8f1e1770c0ff6cbb
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:
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
Publikováno v:
Materials, Vol 10, Iss 7, p 810 (2017)
Quantum-phase transitions between trivial insulators and topological insulators differ from ordinary metal-insulator transitions in that they arise from the inversion of the bulk band structure due to strong spin–orbit coupling. Such topological ph
Externí odkaz:
https://doaj.org/article/5223d993331c4027be0275bfce2e0386