Thermoelectric evidence for high-field anomalies in the hidden order phase of URu2Si2

Liam Malone, Tatsuma D. Matusda, Arlei Antunes, Georg Knebel, Valentin Taufour, Dai Aoki, Kamran Behnia, Cyril Proust, Jacques Flouquet

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16 Citations (Scopus)


Measurements of the thermoelectric coefficients of URu2Si 2 in a high magnetic field could imply topological Fermi surface changes even deep inside the hidden order state. A change is observed in the thermopower as a function of the field applied parallel to the easy axis of magnetization, which could signify a change in the Fermi surface characteristics. The maximum of the thermopower coincides with previously measured anomalies in resistivity at H*=23 T. We analyze our results in terms of a Lifshitz transition in URu2Si2 originating from the hidden order Pauli depairing on a given subband.

Original languageEnglish
Article number245117
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number24
Publication statusPublished - 2011 Jun 22


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