Purely rotational symmetry-protected topological crystalline insulator α -Bi₄ Br₄

Rotational-symmetry-protected topological crystalline insulators (TCIs) are expected to host unique boundary modes, in that the surface normal to the rotational axis can feature surface states with 'unpinned' Dirac points, which are not constrained to lie on high symmetry points or lines,...

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Bibliographic Details
Main Authors: Ma, Qiong, Gedik, Nuh, Fu, Liang, Xu, Suyang
Other Authors: MIT Materials Research Laboratory
Format: Article
Language:English
Published: IOP Publishing 2020
Online Access:https://hdl.handle.net/1721.1/128695