Impact of Ultrathin Pb Films on the Topological Surface and Quantum-Well States of Bi2Se3 and Sb2Te3 Topological Insulators | Sciact - CRIS-система Института катализа

Impact of Ultrathin Pb Films on the Topological Surface and Quantum-Well States of Bi2Se3 and Sb2Te3 Topological Insulators Научная публикация

Журнал

Journal of Experimental and Theoretical Physics
ISSN: 1063-7761 , E-ISSN: 1090-6509

Вых. Данные

Год: 2018, Том: 126, Номер: 4, Страницы: 535-540 Страниц : 6 DOI: 10.1134/S1063776118040088

Ключевые слова

Antimony compounds; Binding energy; Bismuth compounds; Core levels; Electric insulators; Electronic states; Interface states; Interfaces (materials); Photoelectron spectroscopy; Quantum computers; Quantum theory; Selenium compounds; Tellurium compounds; Topology; Ultrathin films

Авторы

Surnin Yu.A. ¹ , Klimovskikh I.I. ¹ , Sostina D.M. ¹ , Kokh K.A. ^2,3 , Tereshchenko O.E. ^3,4 , Shikin A.M. ¹

Организации

1	St. Petersburg State University, St. Petersburg, 198504 Russia
2	Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
3	Novosibirsk State University, Novosibirsk, 630090 Russia
4	Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

The effect of an ultrathin Pb film deposited on the surface of Bi2Se3 and Sb2Te3 compounds on the electronic state structure of topological insulators is studied experimentally by the angle-resolved photoemission spectroscopy (ARPES) technique. The following features are revealed: formation of two-dimensional quantum-well states in the near-surface region, an increase in the binding energy of the Dirac cone and the core levels, and a simultaneous electronic states intensity redistribution in the system in photoemission spectra. The results obtained show that topological states may coexist at the interface between studied materials and a superconductor, which seems to be promising for application in quantum computers.

Surnin Y.A. , Klimovskikh I.I. , Sostina D.M. , Kokh K.A. , Tereshchenko O.E. , Shikin A.M.
Impact of Ultrathin Pb Films on the Topological Surface and Quantum-Well States of Bi2Se3 and Sb2Te3 Topological Insulators
Journal of Experimental and Theoretical Physics. 2018. V.126. N4. P.535-540. DOI: 10.1134/S1063776118040088 WOS Scopus CAPlus OpenAlex

Сурнин Ю.А. , Климовских И.И. , Состина Д.М. , Кох К.А. , Терещенко О.Е. , Шикин А.М.
Влияние ультратонких пленок Pb на поверхностные топологические и квантово-размерные состояния топологических изоляторов Bi2Se3 и Sb2Te3
Журнал экспериментальной и теоретической физики. 2018. №4. С.649-655. DOI: 10.7868/s0044451018040120 OpenAlex

Поступила в редакцию:	18 дек. 2017 г.
Опубликована в печати:	1 апр. 2018 г.
Опубликована online:	2 июн. 2018 г.

Web of science:	WOS:000434476400011
Scopus:	2-s2.0-85048200284
Chemical Abstracts:	2018:1087433
OpenAlex:	W2806971864

БД	Цитирований
Scopus	8
OpenAlex	8
Web of science	7