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.
|ジャーナル||Physical Review B - Condensed Matter and Materials Physics|
|出版ステータス||Published - 2011 6月 22|
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