Publication: Shubnikov–de Haas Effect and Electrophysical Properties of the Topological Insulator Sb2 – xCuxTe3
Дата
2019
Авторы
Zinov'ev, D. A.
Maslov, N. V.
Kytin, V. G.
Kulbachinskii, V. A.
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Аннотация
© 2019, Pleiades Publishing, Inc.Abstract: The results of the study of the influence of Cu on the Shubnikov–de Haas effect and the electrical properties of p-Sb2 – xCuxTe3 single crystals (0 ≤ x ≤ 0.1) are presented. In the framework of the parabolic model of the energy spectrum, the hole concentrations and the Fermi energy in Sb2 – xCuxTe3 are calculated based on the oscillation frequencies of the magnetoresistance. It is shown that doping by Cu has an acceptor effect and significantly increases the frequencies of Shubnikov–de Haas oscillations. A plateau is observed in the dependences of the Hall resistance on magnetic field. The dependences of the resistance on temperature obey the power law with the exponent m = 1.2, which is characteristic of scattering on phonons with the contribution of scattering on ionized impurities. Unlike other impurities, the exponent remains almost unchanged when doped by Cu to the maximum concentrations studied.
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Shubnikov–de Haas Effect and Electrophysical Properties of the Topological Insulator Sb2 – xCuxTe3 / Zinov'ev, D.A. [et al.] // Journal of Experimental and Theoretical Physics. - 2019. - 128. - № 6. - P. 926-931. - 10.1134/S1063776119050121
URI
https://www.doi.org/10.1134/S1063776119050121
https://www.scopus.com/record/display.uri?eid=2-s2.0-85070191248&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/18535
https://www.scopus.com/record/display.uri?eid=2-s2.0-85070191248&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000478890400013
https://openrepository.mephi.ru/handle/123456789/18535