Evidence for a topological excitonic insulator in InAs/GaSb bilayers

oleh: Lingjie Du, Xinwei Li, Wenkai Lou, Gerard Sullivan, Kai Chang, Junichiro Kono, Rui-Rui Du

Format: Article
Diterbitkan: Nature Portfolio 2017-12-01

Deskripsi

Weakly bound electron–hole pairs may condensate in two-dimensional systems, but experimental evidence has been lacking. Here, Du et al. report optical spectroscopic and electronic transport evidences for the formation of an excitonic insulator gap in topological InAs/GaSb quantum wells.