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Description:

Spin-orbit coupling (SOC) and electron-electron interaction can mutually influence each other and giverise to a plethora of intriguing phenomena in condensed matter systems. In pristine bilayer graphene,which has weak SOC, intrinsic Lifshitz transitions and concomitant van Hove singularities lead to theemergence of many-body correlated phases. Layer-selective SOC can be proximity induced by addinga layer of tungsten diselenide (WSe2) on its one side. By applying an electric displacement field, thesystem can be tuned across a spectrum wherein electronic correlation, SOC, or a combination of bothdominates. Our investigations reveal an intricate phase diagram of proximity-induced SOC-selectivebilayer graphene. Not only does this phase diagram include those correlated phases reminiscent ofSOC-free doped bilayer graphene, but it also hosts unique SOC-induced states allowing a compellingmeasurement of valley g-factor and a seemingly impossible correlated insulator at charge neutrality,thereby showcasing the remarkable tunability of the interplay between interaction and SOC in WSe2enriched bilayer graphene.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: spin-orbit coupling (SOC)
, bilayer graphene
, strong correlation

Date published: 2025-07-01

Publisher: IOP Publishing

Journal:

• 2D Materials (ISSN: 20531583) vol. 12 issue. 3 035009

Funding:

• Deutsche Forschungsgemeinschaft SPP2244
• European Union
• World Premier International Research Center Initiative (WPI), MEXT, Japan
• KAKENHI 20H00354
• NSF DMR-1945351
• Research and Innovation Program 881603
• DFG
• DFG, German Research Foundation 314695032
• Texas Advanced Computing Center
• JSPS

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1088/2053-1583/add74a

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Updated at: 2026-03-10 16:30:14 +0900

Published on MDR: 2026-03-10 13:44:50 +0900