Fermi Surface Reconstruction inside the Hidden Order Phase of URu2Si2Probed by Thermoelectric Measurements

• DOI: 10.7566/jpsj.82.034706
• Publication Date: 2013-02-05T06:04:30Z
• Authors: Alexandre Pourret; Alexandra Palacio...; Steffen Krämer; Liam Malone; Marc Nardone; Dai Aoki; Georg Knebel; Jacques Flouquet
• Keywords: Condensed Matter - Strongly Correlated Electrons; Strongly Correlated Electrons (cond-mat.str-el); 0103 physical sciences; FOS: Physical sciences; [PHYS.COND.CM-S] Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]; 01 natural sciences; 3. Good health

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