Electric-field-induced <i>Z</i> <sub>2</sub> topological phase transition in strained single bilayer Bi(111)

DOI DOI Web Site Web Site 参考文献34件

この論文をさがす

説明

For controlling the critical electric fields of the topological phase transition in single bilayer Bi(111), we investigated topological phases in a strained system through first-principles calculations. We found a quadratic band touching semimetallic state at tensile strain $��=0.5$%. Around this strain, the topological phase can be switched to a trivial insulator by an infinitesimal electric field. The positions at which Dirac cones appear in the electric-field-induced topological phase transition changed for the strain $��>0.5$% and $��<0.5$%. Our results indicate that this topological phase transition could be applied to novel spintronic devices.

収録刊行物

参考文献 (34)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ