Superconductivity of highly spin-polarized electrons in FeSe probed by Se-77 NMR
文献类型：期刊论文
| 作者 | Molatta, S.2,3,4; Opherden, D.2,3,4; Wosnitza, J.2,3,4; Opherden, L.2,3,4; Zhang, Z. T.2,3,5; Wolf, T.6; Loehneysen, H., V1,6; Sarkar, R.4; Biswas, P. K.7; Grafe, H-J8 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2021-07-12 |
| 卷号 | 104 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.104.014504 |
| 通讯作者 | Kuehne, H.(h.kuehne@hzdr.de) |
| 英文摘要 | A number of recent experiments indicate that the iron-chalcogenide FeSe provides the long-sought possibility to study bulk superconductivity in the cross-over regime between the weakly coupled Bardeen-Cooper-Schrieffer (BCS) pairing and the strongly coupled Bose-Einstein condensation (BEC). We report on Se-77 nuclear magnetic resonance experiments of FeSe, focused on the superconducting phase for strong magnetic fields applied along the c axis, where a distinct state with large spin polarization was reported. We determine this high-field state as bulk superconducting with high spatial homogeneity of the low-energy spin fluctuations. Further, we find that the static spin susceptibility becomes unusually small at temperatures approaching the superconducting state, despite the presence of pronounced spin fluctuations. Taken together, our results clearly indicate that FeSe indeed features an unusual field-induced superconducting state of a highly spin-polarized Fermi liquid in the BCS-BEC crossover regime. |
| WOS关键词 | HIGH-TEMPERATURE SUPERCONDUCTIVITY ; PHASE-DIAGRAM ; NEMATICITY |
| 资助项目 | Deutsche Forschungsgemeinschaft (DFG)[GRK 1621] ; Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat (EXC 2147)[390858490] ; HLD at HZDR ; National Natural Science Foundation of China[11304321] ; International Postdoctoral Exchange Fellowship Program 2013[20130025] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000672757900004 |
| 资助机构 | Deutsche Forschungsgemeinschaft (DFG) ; Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat (EXC 2147) ; HLD at HZDR ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program 2013 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123454]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Kuehne, H. |
| 作者单位 | 1.Karlsruher Inst Technol, Phys Inst, D-76049 Karlsruhe, Germany 2.Helmholtz Zentrum Dresden Rossendolf, Hochfeld Magnetlab Dresden HLD EMFL, D-01328 Dresden, Germany 3.Helmholtz Zentrum Dresden Rossendolf, Wurzburg Dresden Cluster Excellence Ctqmat, D-01328 Dresden, Germany 4.Tech Univ Dresden, Inst Festkorper & Mat Phys, D-01062 Dresden, Germany 5.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China 6.Karlsruher Inst Technol, Inst Quantenmat & Technol, D-76021 Karlsruhe, Germany 7.Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England 8.IFW Dresden, Inst Solid State Res, D-01171 Dresden, Germany |
| 推荐引用方式 GB/T 7714 | Molatta, S.,Opherden, D.,Wosnitza, J.,et al. Superconductivity of highly spin-polarized electrons in FeSe probed by Se-77 NMR[J]. PHYSICAL REVIEW B,2021,104. |
| APA | Molatta, S..,Opherden, D..,Wosnitza, J..,Opherden, L..,Zhang, Z. T..,...&Kuehne, H..(2021).Superconductivity of highly spin-polarized electrons in FeSe probed by Se-77 NMR.PHYSICAL REVIEW B,104. |
| MLA | Molatta, S.,et al."Superconductivity of highly spin-polarized electrons in FeSe probed by Se-77 NMR".PHYSICAL REVIEW B 104(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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