Lifshitz transitions in the ferromagnetic superconductor UCoGe

Gaël Bastien, Adrien Gourgout, Dai Aoki, Alexandre Pourret, Ilya Sheikin, Gabriel Seyfarth, Jacques Flouquet, Georg Knebel

研究成果: Article査読

19 被引用数 (Scopus)

抄録

We present high field magnetoresistance, Hall effect and thermopower measurements in the Ising-type ferromagnetic superconductor UCoGe. A magnetic field is applied along the easy magnetization c axis of the orthorhombic crystal. In the different experimental probes, we observed five successive anomalies at H≈4, 9, 12, 16, and 21 T. Magnetic quantum oscillations were detected both in resistivity and thermoelectric power. At most of the anomalies, significant changes of the oscillation frequencies and the effective masses have been observed, indicating successive Fermi surface instabilities induced by the strong magnetic polarization under a magnetic field.

本文言語English
論文番号206401
ジャーナルPhysical review letters
117
20
DOI
出版ステータスPublished - 2016 11月 9

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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