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Thermoelectricity of URu2Si2: Giant Nernst effect in the hidden-order state

Romain Bel, Hao Jin, Kamran Behnia, Jacques Flouquet, and Pascal Lejay
Phys. Rev. B 70, 220501(R) – Published 1 December 2004

Abstract

We present a study of Nernst and Seebeck coefficients in the heavy-fermion compound URu2Si2, 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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  • Received 28 September 2004

DOI:https://doi.org/10.1103/PhysRevB.70.220501

©2004 American Physical Society

Authors & Affiliations

Romain Bel1, Hao Jin1, Kamran Behnia1, Jacques Flouquet2, and Pascal Lejay3

  • 1Laboratoire de Physique Quantique (CNRS), ESPCI, 10 Rue de Vauquelin, 75231 Paris, France
  • 2DRFMC/SPSMS, Commissariat à l’Energie Atomique, F-38042 Grenoble, France
  • 3Centre de Recherche sur les Très Basses Températures (CNRS), F-38042 Grenoble, France

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Issue

Vol. 70, Iss. 22 — 1 December 2004

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