Probing the Mott physics in Kappa -(BEDT-TTF) sub(2)X salts via thermal expansion

In the field of interacting electron systems the Mott metal-to-insulator (MI) transition represents one of the pivotal issues. The role played by lattice degrees of freedom for the Mott MI transition and the Mott criticality in a variety of materials are current topics under debate. In this context,...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2015-02, Vol.27 (5), p.1-27
Main Authors: de Souza, Mariano, Bartosch, Lorenz
Format: Article
Language:English
Subjects:
Condensed matter
Conductors
Degrees of freedom
Expansion
Lattices
Mathematical analysis
Thermal expansion
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Summary:In the field of interacting electron systems the Mott metal-to-insulator (MI) transition represents one of the pivotal issues. The role played by lattice degrees of freedom for the Mott MI transition and the Mott criticality in a variety of materials are current topics under debate. In this context, molecular conductors of the Kappa -(BEDT-TTF) sub(2)X type constitute a class of materials for unraveling several aspects of the Mott physics. In this review, we present a synopsis of literature results with focus on recent expansivity measurements probing the Mott MI transition in this class of materials. Progress in the description of the Mott critical behavior is also addressed.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/27/5/053203