Discrimination of conductive surface electron states by laser terahertz radiation in PbSe – a base for Pb1−xSnxSe topological crystalline insulators. , 5, 659-664 (2015)статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 сентября 2015 г.
Аннотация:We report on the influence of oxidation on features of surface electron states in PbSe films—materials belonging to the family of topological crystalline insulators PbSnSe. These states are detected through observation of the photoelectromagnetic effect induced by terahertz laser pulses. It is demonstrated that highly conductive surface electron states in PbSe are inherent to the semiconductor itself and are not related to the material oxidation. This allows excluding surface states induced by oxidation as a reason for high surface conductivity in topological crystalline insulators based on PbSnSe.