Excess charges as a probe of one-dimensional topological crystalline insulating phases

Guido van Miert, Carmine Ortix

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We show that in conventional one-dimensional insulators excess charges created close to the boundaries of the system can be expressed in terms of the Berry phases associated with the electronic Bloch wave functions. Using this correspondence, we uncover a link between excess charges and the topological invariants of the recently classified one-dimensional topological phases protected by spatial symmetries. Excess charges can be thus used as a probe of crystalline topologies.
Original languageEnglish
Article number235130
Number of pages12
JournalPhysical Review B
Volume96
Issue number23
DOIs
Publication statusPublished - 19 Dec 2017

Keywords

  • cond-mat.mes-hall

Fingerprint

Dive into the research topics of 'Excess charges as a probe of one-dimensional topological crystalline insulating phases'. Together they form a unique fingerprint.

Cite this