paper

Ghost excitonic insulator transition in layered graphite

arXiv:cond-mat/0101306 · doi:10.1103/PhysRevLett.87.246802

Abstract

Some unusual properties of layered graphite, including a linear energy dependence of the quasiparticle damping and weak ferromagnetism at low doping, are explained as a result of the proximity of a single graphene sheet to the excitonic insulator phase which can be further stabilized in a doped system of many layers stacked in the staggered () configuration.

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