Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Evgueni V, Chulkov"'
Autor:
Manaswini Sahoo, Ifeanyi John Onuorah, Laura Christina Folkers, Ekaterina Kochetkova, Evgueni V. Chulkov, Mikhail M. Otrokov, Ziya S. Aliev, Imamaddin R. Amiraslanov, Anja U. B. Wolter, Bernd Büchner, Laura Teresa Corredor, Chennan Wang, Zaher Salman, Anna Isaeva, Roberto De Renzi, Giuseppe Allodi
Publikováno v:
Advanced Science, Vol 11, Iss 34, Pp n/a-n/a (2024)
Abstract Magnetic topological insulators (TIs) herald a wealth of applications in spin‐based technologies, relying on the novel quantum phenomena provided by their topological properties. Particularly promising is the (MnBi2Te4)(Bi2Te3)n layered fa
Externí odkaz:
https://doaj.org/article/85a2ccf090c14c60847b284059f1a7ee
Autor:
Mihovil Bosnar, Alexandra Yu. Vyazovskaya, Evgeniy K. Petrov, Evgueni V. Chulkov, Mikhail M. Otrokov
Publikováno v:
npj 2D Materials and Applications, Vol 7, Iss 1, Pp 1-8 (2023)
Abstract Chern insulators are two-dimensional magnetic topological materials that conduct electricity along their edges via the one-dimensional chiral modes. The number of these modes is a topological invariant called the first Chern number C that de
Externí odkaz:
https://doaj.org/article/37e4895a48aa41c4a792c0421dbac747
Publikováno v:
Materials, Vol 17, Iss 1, p 63 (2023)
We calculate, within the density-functional theory, the atomic and electronic structure of the clean Pt(111) and Au(111) surfaces and the nML-Au/Pt(111) systems with n varying from one to three. The effect of the spin–orbital interaction was taken
Externí odkaz:
https://doaj.org/article/29e83b3d2fb347e2badd539a04f717d8
Autor:
Alexandra Yu. Vyazovskaya, Evgeniy K. Petrov, Yury M. Koroteev, Mihovil Bosnar, Igor V. Silkin, Evgueni V. Chulkov, Mikhail M. Otrokov
Publikováno v:
Nanomaterials, Vol 13, Iss 1, p 38 (2022)
Using relativistic spin-polarized density functional theory calculations we investigate magnetism, electronic structure and topology of the ternary thallium gadolinium dichalcogenides TlGdZ2 (Z= Se and Te) as well as superlattices on their basis. We
Externí odkaz:
https://doaj.org/article/4d981b4d41d54a5092fec858f8ff16fd
Publikováno v:
Nanomaterials, Vol 13, Iss 1, p 141 (2022)
In this work, we study, in the framework of the ab initio linear-response time-dependent density functional theory, the low-energy collective electronic excitations with characteristic sound-like dispersion, called acoustic plasmons, in bulk ferromag
Externí odkaz:
https://doaj.org/article/c325821fa58242b0a93c31267bed142e
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033218 (2022)
The equilibration of electronic carriers in metals after excitation by an ultrashort laser pulse provides an important class of nonequilibrium phenomena in metals and allows measuring the effective electron-phonon coupling parameter. Since the observ
Externí odkaz:
https://doaj.org/article/2d3a2dd6088c41aab31218e872e7c8db
Autor:
Erik Haubold, Alexander Fedorov, Florian Pielnhofer, Igor P. Rusinov, Tatiana V. Menshchikova, Viola Duppel, Daniel Friedrich, Richard Weihrich, Arno Pfitzner, Alexander Zeugner, Anna Isaeva, Setti Thirupathaiah, Yevhen Kushnirenko, Emile Rienks, Timur Kim, Evgueni V. Chulkov, Bernd Büchner, Sergey Borisenko
Publikováno v:
APL Materials, Vol 7, Iss 12, Pp 121106-121106-7 (2019)
We report experimental and theoretical evidence that GaGeTe is a basic Z2 topological semimetal with three types of charge carriers: bulk-originated electrons and holes as well as surface state electrons. This electronic situation is qualitatively si
Externí odkaz:
https://doaj.org/article/a3746c7999754c6c8a470f1f3a0d3ed3
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract The use of topological edge states for spintronic applications could be severely hampered by limited lifetimes due to intrinsic many-body interactions, in particular electron-phonon coupling. Previous works to determine the intrinsic couplin
Externí odkaz:
https://doaj.org/article/8b0dcf72b79e468da247194c813dfe09
Autor:
Henriette Maaß, Hendrik Bentmann, Christoph Seibel, Christian Tusche, Sergey V. Eremeev, Thiago R. F. Peixoto, Oleg E. Tereshchenko, Konstantin A. Kokh, Evgueni V. Chulkov, Jürgen Kirschner, Friedrich Reinert
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
In semiconductors containing heavy elements, the Rashba spin-orbit interaction can couple the momentum and spin of electrons, yielding spintronic functionality. Here, the authors image band- and orbital-dependent spin-textures in the layered polar se
Externí odkaz:
https://doaj.org/article/60d1b5d302fe4962b62ce75962f34c69
Publikováno v:
Materials, Vol 13, Iss 20, p 4481 (2020)
Based on first-principles calculations, we study electronic structure of interfaces between a Z2 topological insulator (TI) SnBi2Te4 and a topological crystalline insulator (TCI) SnTe. We consider two interface models characterized by the different a
Externí odkaz:
https://doaj.org/article/e0632b19252b402ab061ec6b7f5d3755