High-field moment polarization in the ferromagnetic superconductor UCoGe

被引：42

作者：

Knafo, W. ^{[1
]}

Matsuda, T. D. ^{[2
]}

Aoki, D. ^{[3
,4
]}

Hardy, F. ^{[5
]}

Scheerer, G. W. ^{[1
]}

Ballon, G. ^{[1
]}

Nardone, M. ^{[1
]}

Zitouni, A. ^{[1
]}

Meingast, C. ^{[5
]}

Flouquet, J. ^{[3
]}

机构：

[1] CNRS UJF UPS INSA, UPR 3228, Lab Natl Champs Magnet Intenses, F-31400 Toulouse, France

[2] Japan Atom Energy Agcy, Adv Sci Res Ctr, Ibaraki 3191195, Japan

[3] CEA, SPSMS, Inst Nanosci & Cryogenie, F-38054 Grenoble, France

[4] Tohoku Univ, Inst Mat Res, Oarai, Ibaraki 3111313, Japan

[5] Karlsruher Inst Technol, Inst Festkorperphys, D-76021 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 2012年 / 86卷 / 18期

关键词：

URHGE; TRANSITION;

D O I：

10.1103/PhysRevB.86.184416

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report magnetization and magnetoresistivity measurements on the isostructural ferromagnetic superconductors UCoGe and URhGe in magnetic fields up to 60 T and temperatures from 1.5 to 80 K. At low temperature, a moment polarization in UCoGe in a field mu H-0 parallel to b of around 50 T leads to well-defined anomalies in both magnetization and magnetoresistivity. These anomalies vanish in temperatures higher than 30-40 K, where maxima in the magnetic susceptibility and the field-induced variation of the magnetoresistivity are found. A comparison is made between UCoGe and URhGe, where a moment reorientation in a magnetic field mu H-0 parallel to b of 12 T leads to field-induced reentrant superconductivity.

引用

页数：4

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