Phys. Rev. Lett. 87, 246802 (2001) [4 pages]Ghost Excitonic Insulator Transition in Layered GraphiteReceived 30 January 2001; published 20 November 2001 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 ( ABAB…) configuration. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.246802
DOI:
10.1103/PhysRevLett.87.246802
PACS:
73.43.Nq, 71.10.Pm, 71.30.+h, 73.20.Mf
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