Metallic Phase and Temperature Dependence of the ν=0 Quantum Hall State in Bilayer Graphene

Jing Li, Hailong Fu, Zhenxi Yin, Kenji Watanabe, Takashi Taniguchi, Jun Zhu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The ν=0 quantum Hall state of bilayer graphene is a fertile playground to realize many-body ground states with various broken symmetries. Here we report the experimental observations of a previously unreported metallic phase. The metallic phase resides in the phase space between the previously identified layer polarized state at large transverse electric field and the canted antiferromagnetic state at small transverse electric field. We also report temperature dependence studies of the quantum spin Hall state of ν=0. Complex nonmonotonic behavior reveals concomitant bulk and edge conductions and excitations. These results provide a timely experimental update to understand the rich physics of the ν=0 state.

Original languageEnglish (US)
Article number097701
JournalPhysical review letters
Volume122
Issue number9
DOIs
StatePublished - Mar 5 2019

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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