Nodeless superconducting gap in the topological superconductor candidate 2M-WS2
文献类型：期刊论文
| 作者 | Wang, LS; Fang, YQ; Huang, YY; Cheng, EJ; Ni, JM; Pan, BL; Xu, Y; Huang, FQ; Li, SY |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2020-07-30 |
| 期号 | 2 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.102.024523 |
| 文献子类 | Article |
| 英文摘要 | Recently, a new transition-metal dichalcogenide (TMD) material 2M-phase WS2 was synthesized. The material 2M-WS2 not only exhibits superconductivity, with the highest T-c being 8.8 K at ambient pressure among TMDs, but also hosts a topological surface state. Here we report the low-temperature thermal conductivity measurements on 2M-WS2 single crystals to investigate its superconducting gap structure. A negligible residual linear term kappa(0)/T in zero field shows that 2M-WS2 has a fully superconducting gap with all electrons paired. The field dependence of kappa(0)/T suggests an anisotropic superconducting gap or multiple nodeless superconducting gaps in 2M-WS2. Such a fully gapped superconducting state is compatible with 2M-WS2 being a topological superconductor candidate. |
| WOS关键词 | STATE |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27881]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, LS,Fang, YQ,Huang, YY,et al. Nodeless superconducting gap in the topological superconductor candidate 2M-WS2[J]. PHYSICAL REVIEW B,2020(2). |
| APA | Wang, LS.,Fang, YQ.,Huang, YY.,Cheng, EJ.,Ni, JM.,...&Li, SY.(2020).Nodeless superconducting gap in the topological superconductor candidate 2M-WS2.PHYSICAL REVIEW B(2). |
| MLA | Wang, LS,et al."Nodeless superconducting gap in the topological superconductor candidate 2M-WS2".PHYSICAL REVIEW B .2(2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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