The Effect of Randomness on the Mott State
Strongly Correlated Electrons
2009-11-13 v1
Abstract
We reinvestigate the competition between the Mott and the Anderson insulator state in a one-dimensional disordered fermionic system by a combination of instanton and renormalization group methods. Tracing back both the compressibility and the ac-conductivity to a vanishing kink energy of the electronic displacement field we do not find any indication for the existence of an intermediate (Mott glass) phase.
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Cite
@article{arxiv.cond-mat/0701114,
title = {The Effect of Randomness on the Mott State},
author = {Thomas Nattermann and Aleksandra Petkovic and Zoran Ristivojevic and Friedmar Schuetze},
journal= {arXiv preprint arXiv:cond-mat/0701114},
year = {2009}
}
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4 pages