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Breakup of the Fermi Surface Near the Mott Transition in Low-Dimensional Systems

Authors
Biermann, S.
Published in Physical Review Letters. 2006, vol. 97, no. 13, p. 136401
Abstract We investigate the Mott transition in weakly coupled one-dimensional (1D) fermionic chains. Using a generalization of dynamical mean field theory, we show that the Mott gap is suppressed at some critical hopping t⊥c2. The transition from the 1D insulator to a 2D metal proceeds through an intermediate phase where the Fermi surface is broken into electron and hole pockets. The quasiparticle spectral weight is strongly anisotropic along the Fermi surface, both in the intermediate and metallic phases. We argue that such pockets would look like “arcs” in photoemission experiments.
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BERTHOD, Christophe et al. Breakup of the Fermi Surface Near the Mott Transition in Low-Dimensional Systems. In: Physical Review Letters, 2006, vol. 97, n° 13, p. 136401. https://archive-ouverte.unige.ch/unige:26784

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Deposited on : 2013-03-13

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