Hassan, SR and Georges, A and Krishnamurthy, HR (2005) Sound Velocity Anomaly at the Mott Transition: Application to Organic Conductors and V2O3. In: Physical Review Letters, 94 (3).
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Abstract
Close to the Mott transition, lattice degrees of freedom react to the softening of electron degrees of freedom. This results in a change of lattice spacing, a diverging compressibility, and a critical anomaly of the sound velocity. These effects are investigated within a simple model, in the framework of dynamical mean-field theory. The results compare favorably to recent experiments on the layered organic-conductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl. We predict that effects of a similar magnitude are expected for V2O3, despite the much larger value of the elastic modulus of this material.
Item Type: | Journal Article |
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Publication: | Physical Review Letters |
Publisher: | The 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: | 04 Jun 2010 10:28 |
Last Modified: | 19 Sep 2010 06:01 |
URI: | http://eprints.iisc.ac.in/id/eprint/27536 |
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