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On the thermoelectricity of correlated electrons in the zero-temperature limit

Behnia, Kamran
Flouquet, Jacques
Published in Journal of Physics. Condensed Matter. 2004, vol. 16, no. 28, p. 5187-5198
Abstract The Seebeck coefficient of a metal is expected to display a linear temperature dependence in the zero-temperature limit. To attain this regime, it is often necessary to cool the system well below 1 K. We put under scrutiny the magnitude of this term in different families of strongly interacting electronic systems. For a wide range of compounds (including heavy-fermion, organic and various oxide families) a remarkable correlation between this term and the electronic specific heat is found. We argue that a dimensionless ratio relating these two signatures of mass renormalization contains interesting information about the ground state of each system. The absolute value of this ratio remains close to unity in a wide range of strongly correlated electron systems.
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Research group Groupe Triscone
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BEHNIA, Kamran, JACCARD, Didier, FLOUQUET, Jacques. On the thermoelectricity of correlated electrons in the zero-temperature limit. In: Journal of Physics. Condensed Matter, 2004, vol. 16, n° 28, p. 5187-5198. doi: 10.1088/0953-8984/16/28/037 https://archive-ouverte.unige.ch/unige:35730

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Deposited on : 2014-04-15

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