p-wave superconductivity near a transverse saturation field

被引：36

作者：

Hattori, K. ^{[1
]}

Tsunetsugu, H. ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

PHYSICAL REVIEW B | 2013年 / 87卷 / 06期

关键词：

URHGE; FERROMAGNETISM; COEXISTENCE; STATE;

D O I：

10.1103/PhysRevB.87.064501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate reentrant superconductivity in an Ising ferromagnetic superconductor URhGe under a transverse magnetic field h(x). The superconducting transition temperature for p-wave order parameters T-sc is calculated and shows two domes as a function of h(x). We find strong enhancement of T-sc in the high-field dome near a saturation field h(s) where the spins align in the transverse direction. Soft magnons generate strong attractive interactions there. Spin components of the pairing show a significant change between h(x) < h(s) and h(x) > h(s). We also discuss the appearance of superconductivity with zero-spin pair due to cancellation between external and exchange fields. DOI: 10.1103/PhysRevB.87.064501

引用

页数：5

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