Spin-singlet superconductivity with a full gap in locally noncentrosymmetric SrPtAs
文献类型：期刊论文
| 作者 | Matano, K ; Arima, K ; Maeda, S ; Nishikubo, Y ; Kudo, K ; Nohara, M ; Zheng, GQ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:14 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Matano, K (reprint author), Okayama Univ, Dept Phys, Okayama 7008530, Japan. |
| 中文摘要 | We report Pt-195-NMR and As-75 nuclear quadrupole resonance measurements for the locally noncentrosymmetric superconductor SrPtAs where the As-Pt layer breaks inversion symmetry while globally the compound is centrosymmetric. The nuclear spin-lattice relaxation rate 1/T-1 shows a well-defined coherence peak below T-c and decreases exponentially at low temperatures. The spin susceptibility measured by the Knight shift also decreases below Tc down to T < T-c/6. These data, together with the penetration depth obtained from the NMR spectra, can be consistently explained by a spin-singlet superconducting state with a full gap. Our results suggest that the spin-orbit coupling due to the local inversion-symmetry breaking is not large enough to bring about an exotic superconducting state, or the interlayer hopping interaction is larger than the spin-orbit coupling. |
| 资助信息 | MEXT of Japan [22103004] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59552]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Matano, K,Arima, K,Maeda, S,et al. Spin-singlet superconductivity with a full gap in locally noncentrosymmetric SrPtAs[J]. PHYSICAL REVIEW B,2014,89(14). |
| APA | Matano, K.,Arima, K.,Maeda, S.,Nishikubo, Y.,Kudo, K.,...&Zheng, GQ.(2014).Spin-singlet superconductivity with a full gap in locally noncentrosymmetric SrPtAs.PHYSICAL REVIEW B,89(14). |
| MLA | Matano, K,et al."Spin-singlet superconductivity with a full gap in locally noncentrosymmetric SrPtAs".PHYSICAL REVIEW B 89.14(2014). |
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来源：物理研究所
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