Spectral properties in the charge-density-wave phase of the half-filled Falicov-Kimball model

Hassan, SR and Krishnamurthy, HR (2007) Spectral properties in the charge-density-wave phase of the half-filled Falicov-Kimball model. In: Physical Review B, 76 (20). 205109-1-205109-11.

PDF aps.pdf Restricted to Registered users only Download (830kB) | Request a copy

Abstract

We study the spectral properties of the charge-density-wave (CDW) phase of the half-filled spinless Falicov-Kimball model within the framework of the dynamical mean field theory. We present detailed results for the spectral function in the CDW phase as a function of temperature and U. We show how the proximity of the non-Fermi liquid phase affects the CDW phase, and show that there is a region in the phase diagram where we get a CDW phase without a gap in the spectral function. This is a radical deviation from the mean-field prediction where the gap is proportional to the order parameter.

Item Type:	Journal Article
Publication:	Physical Review B
Publisher:	American Physical Society
Additional Information:	Copyright of this article belongs to the American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	03 Jun 2008
Last Modified:	19 Sep 2010 04:45
URI:	http://eprints.iisc.ac.in/id/eprint/14156

Actions (login required)

View Item