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A complete devil's staircase in the Falicov - Kimball model

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Published under licence by IOP Publishing Ltd
, , Citation C Micheletti et al 1997 J. Phys. A: Math. Gen. 30 L711 DOI 10.1088/0305-4470/30/21/002

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1 Department of Physics, Theoretical Physics, Oxford University, 1 Keble Road, Oxford OX1 3NP, UK

2 Department of Physics, University of Pennsylvania, Philadelphia, PA 19104-6396, USA

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  1. Received 4 February 1997

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0305-4470/30/21/L711

Abstract

We consider the neutral, one-dimensional Falicov - Kimball model at zero temperature in the limit of a large electron - ion attractive potential, U. By calculating the general n-ion interaction terms to leading order in 1/U we argue that the ground state of the model exhibits the behaviour of a complete devil's staircase.

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