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arXiv 0808.0974cond-mat.supr-concond-mat.str-el
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从第一性原理研究Mo3Sb7的超导电性

Superconductivity of Mo3Sb7 from first principles

Bartlomiej Wiendlocha, Janusz Tobola, Malgorzata Sternik, Stanislaw Kaprzyk, Krzysztof Parlinski, Andrzej M. Oles

摘要:

本文用电子结构和声子结合的方法分析了Mo_3Sb_7的超导电性,并由第一性原理确定了电子-声子耦合常数λ_{ph}=0.54。该值解释了超导临界温度T_c=2.2 K的实验值。讨论了自旋涨落和自旋能隙对Mo_3Sb_7超导性的可能影响,发现电子-顺磁子相互作用很弱。

英文摘要:

Superconductivity in Mo3Sb7 is analyzed using the combined electronic structure and phonon calculations, and the electron--phonon coupling constant λ_{ph}=0.54 is determined from first principles. This value explains the experimental value of the superconducting critical temperature T_c=2.2 K. The possible influence of spin fluctuations and spin gap on the superconductivity in Mo3Sb7 is discussed, and electron--paramagnon interaction is found to be weak.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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