A new GW-BSE-based theory of exciton orbital magnetic moment, with envelope-winding and center-of-mass Berry geometry terms, reproduces measured valley g-factors in biased bilayer graphene.
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Quantum Theory of Exciton Magnetic Moment: Interaction and Topological Effects
A new GW-BSE-based theory of exciton orbital magnetic moment, with envelope-winding and center-of-mass Berry geometry terms, reproduces measured valley g-factors in biased bilayer graphene.