Zobrazeno 1 - 10
of 76
pro vyhledávání: '"E. V. Chulkov"'
Autor:
G. Poelchen, J. Hellwig, M. Peters, D. Yu. Usachov, K. Kliemt, C. Laubschat, P. M. Echenique, E. V. Chulkov, C. Krellner, S. S. P. Parkin, D. V. Vyalikh, A. Ernst, K. Kummer
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Collective spin excitations in magnetically ordered crystals, called magnons or spin waves, can serve as carriers in novel spintronic devices with ultralow energy consumption. The generation of well-detectable spin flows requires long lifeti
Externí odkaz:
https://doaj.org/article/8fad77867c744b99acbbc09a4f2115eb
Autor:
M. Garnica, M. M. Otrokov, P. Casado Aguilar, I. I. Klimovskikh, D. Estyunin, Z. S. Aliev, I. R. Amiraslanov, N. A. Abdullayev, V. N. Zverev, M. B. Babanly, N. T. Mamedov, A. M. Shikin, A. Arnau, A. L. Vázquez de Parga, E. V. Chulkov, R. Miranda
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-9 (2022)
Abstract We study the surface crystalline and electronic structures of the antiferromagnetic topological insulator MnBi2Te4 using scanning tunneling microscopy/spectroscopy (STM/S), micro(μ)-laser angle-resolved photoemission spectroscopy (ARPES), a
Externí odkaz:
https://doaj.org/article/fa089efe853e47c283254d15cf62dba8
Autor:
G. Benedek, M. Bernasconi, D. Campi, I. V. Silkin, I. P. Chernov, V. M. Silkin, E. V. Chulkov, P. M. Echenique, J. P. Toennies, G. Anemone, A. Al Taleb, R. Miranda, D. Farías
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract Closed-shell atoms scattered from a metal surface exchange energy and momentum with surface phonons mostly via the interposed surface valence electrons, i.e., via the creation of virtual electron-hole pairs. The latter can then decay into su
Externí odkaz:
https://doaj.org/article/009c1c5259b04af9a1e6f17956da07f6
Autor:
T. Hirahara, M. M. Otrokov, T. T. Sasaki, K. Sumida, Y. Tomohiro, S. Kusaka, Y. Okuyama, S. Ichinokura, M. Kobayashi, Y. Takeda, K. Amemiya, T. Shirasawa, S. Ideta, K. Miyamoto, K. Tanaka, S. Kuroda, T. Okuda, K. Hono, S. V. Eremeev, E. V. Chulkov
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Magnetic topological heterostructures are promising devices to manipulate emergent quantum effects. Here, Hirahara et al. fabricate a novel magnetic topological heterostructure with a massive Dirac cone which becomes a massless one tuned by temperatu
Externí odkaz:
https://doaj.org/article/3bb19ca61bd0426bbe0562b5fa20a83e
Autor:
M. Güttler, A. Generalov, S. I. Fujimori, K. Kummer, A. Chikina, S. Seiro, S. Danzenbächer, Yu. M. Koroteev, E. V. Chulkov, M. Radovic, M. Shi, N. C. Plumb, C. Laubschat, J. W. Allen, C. Krellner, C. Geibel, D. V. Vyalikh
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Heavy-fermion materials have unusual electronic behavior due to a dual localized-itinerant character of 4f electrons. Here, by studying divalent EuRh2Si2, the authors gain insight into the electronic states of the trivalent heavy fermion system YbRh2
Externí odkaz:
https://doaj.org/article/3b4f19237f3e47b098f80599653bf10d
Autor:
D. A. Estyunin, I. I. Klimovskikh, A. M. Shikin, E. F. Schwier, M. M. Otrokov, A. Kimura, S. Kumar, S. O. Filnov, Z. S. Aliev, M. B. Babanly, E. V. Chulkov
Publikováno v:
APL Materials, Vol 8, Iss 2, Pp 021105-021105-7 (2020)
In this work, we employed angle resolved photoemission spectroscopy (ARPES) to analyze the temperature dependent changes in the electronic structure of the first antiferromagnetic topological insulator MnBi2Te4 upon crossing the Néel temperature TN
Externí odkaz:
https://doaj.org/article/c9859729f46c42edb0addbca4446b3b8
Autor:
I. I. Klimovskikh, A. M. Shikin, M. M. Otrokov, A. Ernst, I. P. Rusinov, O. E. Tereshchenko, V. A. Golyashov, J. Sánchez-Barriga, A. Yu. Varykhalov, O. Rader, K. A. Kokh, E. V. Chulkov
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract One of the most promising platforms for spintronics and topological quantum computation is the two-dimensional electron gas (2DEG) with strong spin-orbit interaction and out-of-plane ferromagnetism. In proximity to an s-wave superconductor,
Externí odkaz:
https://doaj.org/article/abf4fcb9e3b74456950d5504b2fb071c
Publikováno v:
International Journal of Photoenergy, Vol 2014 (2014)
First-principles calculations for the temporal characteristics of hole-phonon relaxation in the valence band of titanium dioxide and zinc oxide have been performed. A first-principles method for the calculations of the quasistationary distribution fu
Externí odkaz:
https://doaj.org/article/d8b4f065936b4e218e3ff27373aa1bb5
Publikováno v:
JETP Letters. 117:228-233
Vanadium-containing heterostructures consisting of an ultrathin magnetic film on the surface of a nonmagnetic topological insulator have been studied theoretically. A method has been demonstrated to control the Dirac point shift in the k space, which
Autor:
V. N. Men’shov, E. V. Chulkov
Publikováno v:
JETP Letters. 117:147-156
In this paper, we investigate the electron topological states in a thin film of intrinsic antiferromagnetic topological insulator, focusing on their relationship with the magnetic texture. We consider a model for the film with an even number of septu