Electron-phonon coupling in anion metallic solids and superconducting MgB2

被引：0

作者：

Yin, DL ^{[1
]}

Yang, F ^{[1
]}

Qi, Z ^{[1
]}

Han, RS ^{[1
]}

机构：

[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2002年 / 19卷 / 08期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyse the Hopfield factor of the newly found superconductor MgB2 using the linear muffin-tin orbital method. Based on a uniform transferred charge density model raised, it is shown from our calculation that the high difference of electronegativity between boron and magnesium favours the high l(l + 1) angular momentum hybridization and then the Hopfield factor. Our analysis is consistent with experimental results. Comparisons with cuprate superconductors are also discussed.

引用

页码：1176 / 1178

页数：3

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