Fermi surface reconstruction inside the hidden order phase of URu 2Si2 probed by thermoelectric measurements

Alexandre Pourret, Alexandra Palacio-Morales, Steffen KräMer, Liam Malone, Marc Nardone, Dai Aoki, Georg Knebel, Jacques Flouquet

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We report thermoelectric measurements of the low carrier heavy fermion compound URu2Si2 at high fields up to 34 T and at low temperatures down to 500 mK. The field dependence of the thermoelectric power (TEP) and the Nernst signal shows successive anomalies deep inside the hidden order (HO) phase. The field position of these anomalies correspond to different changes in the Shubnikov-de Haas frequencies and effective masses around 12, 17, 23, and 30 T. These results indicate successive reconstructions of the Fermi surface, which imply electronic phase transitions well within the HO phase.

Original languageEnglish
Article number034706
Journaljournal of the physical society of japan
Volume82
Issue number3
DOIs
Publication statusPublished - 2013 Mar

Keywords

  • Hidden order
  • Nernst effect
  • Thermoelectric power

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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