2013年8月
Spin susceptibility in the superconducting state of the ferromagnetic superconductor UCoGe
PHYSICAL REVIEW B
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- 巻
- 88
- 号
- 8
- 開始ページ
- 085127-1
- 終了ページ
- 085127-5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.88.085127
- 出版者・発行元
- AMER PHYSICAL SOC
In order to determine the superconducting paring state in the ferromagnetic superconductor UCoGe, the Co-59 NMR Knight shift, which is directly related to the microscopic spin susceptibility, was measured in the superconducting state under magnetic fields perpendicular to the spontaneous magnetization axis K-59(a,b). K-59(a,b) shows to be almost constant, but does not decrease below a superconducting transition. These behaviors as well as the invariance of the internal field at the Co site in the superconducting state exclude the spin-singlet pairing, and can be interpreted with the equal-spin pairing state with a large exchange field along the c axis, which was studied by Mineev [Phys. Rev. B 81, 180504 (2010)].
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevB.88.085127
- ISSN : 1098-0121
- Web of Science ID : WOS:000323712400003