Инд. авторы: | Kaveev A.K., Banshchikov A.G., Terpitskiy A.N., Golyashov V.A., Tereshchenko O.E., Kokh K.A., Estyunin D.A., Shikin A.M. |
Заглавие: | Energy-Gap Opening Near the Dirac Point after the Deposition of Cobalt on the (0001) Surface of the Topological Insulator BiSbTeSe2 |
Библ. ссылка: | Kaveev A.K., Banshchikov A.G., Terpitskiy A.N., Golyashov V.A., Tereshchenko O.E., Kokh K.A., Estyunin D.A., Shikin A.M. Energy-Gap Opening Near the Dirac Point after the Deposition of Cobalt on the (0001) Surface of the Topological Insulator BiSbTeSe2 // Semiconductors. - 2020. - Vol.54. - Iss. 9. - P.1051-1055. - ISSN 1063-7826. - EISSN 1090-6479. |
Внешние системы: | DOI: 10.1134/S1063782620090146; SCOPUS: 2-s2.0-85090330705; WoS: 000567018500009; |
Реферат: | eng: Abstract: It is shown for the first time that Co subnanometer coatings deposited by molecular-beam epitaxy on the (0001) surface of the topological insulator BiSbTeSe2 at a temperature of 330°C open an energy gap in the spectrum of topological surface states in the region of the Dirac point with a shift of the Dirac-point position caused by the preliminary deposition of an adsorbate at room temperature. The gap width is 21 ± 6 meV. Temperature-dependent measurements in the range of 15–150 K show no changes in the energy-gap width. © 2020, Pleiades Publishing, Ltd.
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Ключевые слова: | topological insulators; spintronics; energy gap at the Dirac point; doping; |
Издано: | 2020 |
Физ. характеристика: | с.1051-1055 |