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

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

2004-07-07

arxiv.org/abs/cond-mat/0407147v1

Phys. Rev. B 70, 220501(R) (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages including 4 figures

Scientific paper

10.1103/PhysRevB.70.220501

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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