Fermi Surface Reconstruction inside the Hidden Order Phase of URu
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概要
- 論文の詳細を見る
We report thermoelectric measurements of the low carrier heavy fermion compound URu<inf>2</inf>Si<inf>2</inf>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.
- 2013-03-15
著者
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Flouquet Jacques
Spsms Cea
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Aoki Dai
SPSMS, UMR-E 9001, CEA-INAC/UJF-Grenoble 1, 17 rue des martyrs, 38054 Grenoble, France
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Knebel Georg
SPSMS, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble F-38054, France
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KRAMER Steffen
Laboratoire National des Champs Magnetique Intenses, LNCMI--CNRS (UPR3228), UJF, UPS and INSA, BP 166, 38042 Grenoble Cedex 9, France
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Krämer Steffen
Laboratoire National des Champs Magnétiques Intenses, UPR CNRS 3228, CNRS--UJF--UPS--INSA, 25 rue des Martyrs, B.P. 166, 38042 Grenoble cedex 9 France and 143 avenue de Rangueil, 31400 Toulouse, France
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Pourret Alexandre
SPSMS, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble, F-38054, France
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Palacio-Morales Alexandra
SPSMS, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble, F-38054, France
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Malone Liam
H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, United Kingdom
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Nardone Marc
Laboratoire National des Champs Magnétiques Intenses, UPR CNRS 3228, CNRS--UJF--UPS--INSA, 25 rue des Martyrs, B.P. 166, 38042 Grenoble cedex 9 France and 143 avenue de Rangueil, 31400 Toulouse, France
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Nardone Marc
Laboratoire National des Champs Magnétiques Intenses, UPR CNRS 3228, CNRS--UJF--UPS--INSA, 25 rue des Martyrs, B.P. 166, 38042 Grenoble cedex 9 France and 143 avenue de Rangueil, 31400 Toulouse, France
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Pourret Alexandre
SPSMS, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble F-38054, France
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Flouquet Jacques
SPSMS, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble, F-38054, France
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