Weak interband-coupling superconductivity in the filled skutterudite LaPt4Ge12
文献类型：期刊论文
| 作者 | Zhang, J. L.1,2,3; Pang, G. M.1,2; Jiao, L.1,2; Nicklas, M.4; Chen, Y.1,2 ; Weng, Z. F.1,2; Smidman, M.1,2; Schnelle, W.4; Leithe-Jasper, A.4; Maisuradze, A.5,6
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 2015-12-15 |
| 卷号 | 92期号:22页码:1-5 |
| DOI | 10.1103/PhysRevB.92.220503 |
| 文献子类 | Article |
| 英文摘要 | The superconducting pairing state of LaPt4Ge12 is studied by measuring the magnetic penetration depth lambda(T, B) and superfluid density rho(s)(T) using a tunnel-diode-oscillator (TDO)-based method and transverse-field muon-spin rotation (TF-mu SR) spectroscopy. The penetration depth follows an exponential-type temperature dependence at T << T-c, but increases linearly with magnetic field at T = 1.5 K. A detailed analysis demonstrates that both lambda(L) (T) and rho(TDO)(s)(T), measured in the Meissner state using the TDO method, are well described by a two-gap gamma model with gap sizes of Delta(1)(0) = 1.31k(B)T(c) and Delta(2)(0) = 1.80k(B)T(c), and weak interband coupling. In contrast, rho(mu SR)(s) (T), derived from the mu SR data, can be fitted by a single-gap BCS model with a gap close to Delta(2)(0). We conclude that LaPt4Ge12 is a marginal two-gap superconductor and the small gap Delta(1) seems to be suppressed by a small magnetic field applied in the mu SR experiments. In comparison, the 4f electrons in PrPt4Ge12 may enhance the interband coupling and, therefore, give rise to more robust multiband superconductivity. |
| WOS关键词 | MUON-SPIN-ROTATION ; PENETRATION DEPTH ; STATE ; LA |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000366500200002 |
| 资助机构 | National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Basic Research Program of China(2011CBA00103) ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; National Natural Science Foundation of China(11174245 ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; Max Planck Society under the auspices of the Max Planck Partner Group of the Max Planck Institute for Chemical Physics of Solids, Dresden ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; NCCR program Materials with Novel Electronic Properties (MaNEP) - Swiss National Science Foundation ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11474251 ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) ; 11504378) |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/30202]  |
| 专题 | 合肥物质科学研究院_中科院强磁场科学中心 |
| 作者单位 | 1.Zhejiang Univ, Ctr Correlated Matter, Hangzhou 310058, Zhejiang, Peoples R China 2.Zhejiang Univ, Dept Phys, Hangzhou 310058, Zhejiang, Peoples R China 3.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 4.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 5.Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland 6.Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland 7.Tech Univ Bergakad Freiberg, Inst Expt Phys, D-09596 Freiberg, Germany 8.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, J. L.,Pang, G. M.,Jiao, L.,et al. Weak interband-coupling superconductivity in the filled skutterudite LaPt4Ge12[J]. PHYSICAL REVIEW B,2015,92(22):1-5. |
| APA | Zhang, J. L..,Pang, G. M..,Jiao, L..,Nicklas, M..,Chen, Y..,...&Yuan, H. Q..(2015).Weak interband-coupling superconductivity in the filled skutterudite LaPt4Ge12.PHYSICAL REVIEW B,92(22),1-5. |
| MLA | Zhang, J. L.,et al."Weak interband-coupling superconductivity in the filled skutterudite LaPt4Ge12".PHYSICAL REVIEW B 92.22(2015):1-5. |
入库方式： OAI收割
来源：合肥物质科学研究院
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