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Thermoelectricity of URu$_{2}$Si$_{2}$: giant Nernst effect in the hidden-order state

Romain Bel·Hao Jin·Kamran Behnia·Jacques Flouquet·Pascal Lejay
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Abstract

We present a study of Nernst and Seebeck coefficients in the heavy-fermion compound URu$_{2}$Si$_{2}$, which hosts a phase transition of unsettled origin. A giant Nernst signal of unprecedented magnitude was found to emerge in the ordered state. Moreover, our analysis of the Seebeck and Hall data indicates that the ordering leads to a sudden increase in the entropy per itinerant electron and to a drastic decrease in the scattering rate.

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Romain Bel, Hao Jin, Kamran Behnia, Jacques Flouquet, Pascal Lejay. 2004-07-07. Thermoelectricity of URu$_{2}$Si$_{2}$: giant Nernst effect in the hidden-order state. https://doi.org/10.1103/physrevb.70.220501

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