GMR/CMR/TMR and Ferroelectric MaterialsNo Access

ELECTRONICALLY DRIVEN FERROELECTRICITY IN THE EXTENDED FALICOV-KIMBALL MODEL

J. BONČA

Department of Physics, FMF University of Ljubljana and J. Stefan Institute, Ljubljana, Slovenia

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C. D. BATISTA

Center for Nonlinear Studies and Theoretical Division Los Alamos National Laboratory, Los Alamos, NM 87545, USA

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J. E. GUBERNATIS

Center for Nonlinear Studies and Theoretical Division Los Alamos National Laboratory, Los Alamos, NM 87545, USA

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, and

H. Q. LIN

Department of Physics, The Chinese University of Hong Kong, China

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https://doi.org/10.1142/S0217979205028967Cited by:0 (Source: Crossref)

Abstract

We calculate the quantum phase diagram of an extended Falicov-Kimball model in the intermediate coupling regime using a constrained path quantum Monte Carlo technique. The mixed-valence regime is dominated by a Bose-Einstein condensation of excitons with a built-in electric polarization.

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