Effect of Impurities with Internal Structure on Multiband Superconductors —Possible Enhancement of Transition Temperature—
Effect of Impurities with Internal Structure on Multiband Superconductors —Possible Enhancement of Transition Temperature—
复制标题
内部结构杂质对多带超导体的影响——可能提高转变温度——
DOI：
10.1143/jpsj.79.094704
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发表时间：
2010
影响因子：
1.7
通讯作者：
H. Kusunose
中科院分区：
文献类型：
--
作者：
M. Koga;M. Matsumoto;H. Kusunose
研究了具有相同（s ++波）和不同（s ±波）符号序参量的双带超导体中杂质的非弹性（动力学）散射效应。我们专注于增强的超导转变温度Tc的磁带间散射与交换的晶体场单重基态和多重激发态。s ++波或s ±波状态都受到杂质介导的配对的青睐，这取决于杂质态与导带杂化产生的磁散射强度。的细节进行检查的单重态-三重态配置，这是暗示Pr杂质的方钴矿超导体LaOs 4 Sb 12。
We study inelastic (dynamical) impurity scattering effects in two-band superconductors with the same ( s ++ wave) or different ( s ± wave) sign order parameters. We focus on the enhancement of the superconducting transition temperature T c by magnetic interband scattering with the interchange of crystal-field singlet ground and multiplet excited states. Either the s ++ -wave or s ± -wave state is favored by the impurity-mediated pairing, which depends on the magnetic and nonmagnetic scattering strengths derived from the hybridization of the impurity states with the conduction bands. The details are examined for the singlet–triplet configuration that is suggestive of Pr impurities in the skutterudite superconductor LaOs 4 Sb 12 .
填充方钴矿化合物 (Pr_<1-x>La_x)Os_4Sb_<12> 中的多带超导性：Sb 核四极共振研究
DOI：
--
发表时间：
2006
期刊：
J. Phys. Soc. Jpn. 75
影响因子：
--
作者：
M.Yogi;et al.
通讯作者：
et al.
影响因子：
3.7
作者：
Yanagi, Yuki;Yamakawa, Youichi;Ono, Yoshiaki
通讯作者：
Ono, Yoshiaki