X-ray emission and absorption spectra and electronic structure of MgB2

被引：0
|
作者：
Kurmaev, EZ [1 ]
Lyakhovskaya, II
Kortus, J
Demeter, M
Neumann, M
Imazono, T
Miyata, N
Yanagihara, M
Watanabe, M
Muranaka, T
Akimitsu, J
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia
[2] St Petersburg State Univ, Inst Phys, St Petersburg, Russia
[3] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA
[4] Univ Osnabruck, Sekt Phys, D-49069 Osnabruck, Germany
[5] Tohoku Univ, Sci Measurements Res Inst, Sendai, Miyagi 9808577, Japan
[6] Aoyama Gakuin Univ, Dept Phys, Tokyo 1578572, Japan
来源：
SURFACE REVIEW AND LETTERS | 2002年 / 9卷 / 02期
关键词：
D O I：
10.1142/S0218625X02003408
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Measurements of X-ray emission and absorption of the constituents of MgB2 are presented. The results obtained are in good agreement with calculated X-ray spectra, with dipole matrix elements taken into account. The comparison of X-ray emission spectra of graphite, AlB2, and MgB2 in the binding energy scale supports the idea of charge transfer from sigma to pi bands, which creates holes at the top of the bonding sigma bands and drives the high-T-c superconductivity in MgB2.
引用
收藏
页码：1097 / 1102
页数：6
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