Magnetotransport and ARPES studies of the topological insulators Sb₂Te₃ and Bi₂Te₃ grown by MOCVD on large-area Si substrates.

ABSTRACT: Recently, the topological insulators (TIs) antimony telluride (Sb₂Te₃) and bismuth telluride (Bi₂Te₃) are attracting high interest for applications based on spin-charge interconversion mechanisms. Aiming to make a step toward the technology transfer, it is of major importance to achieve and investigate epitaxial quality-TIs on large area Si-based substrates. In view of that, we report here magnetotransport and angle-resolved photoemission spectroscopy (ARPES) studies on Sb₂Te₃ and Bi₂Te₃ thin films grown by metal organic chemical vapor deposition (MOCVD) on top of 4″ Si(111) substrates. Clear weak antilocalization (WAL) effects are observed in both TIs, proving the existence of quantum transport mechani

SUBMITTER: Locatelli L 

PROVIDER: S-EPMC8913753 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature