ELECTRON-VIBRATIONAL MODE-COUPLING IN K3C60 FROM IR-TRANSMITTANCE AND REFLECTIVITY

被引：46

作者：

PICHLER, T

MATUS, M

KUZMANY, H

机构：

[1] Institut für Festkörperphysik, Univ. Wien

来源：

SOLID STATE COMMUNICATIONS | 1993年 / 86卷 / 04期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1016/0038-1098(93)90492-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In situ IR-transmittance and reflectivity measurements were performed on potassium doped C60. A detailed study of the reflectivity of K3C60 revealed the IR-active T1u modes and some additional structures which were assigned to 6 strongly Fano-distorted Raman active H(g) modes and one moderately Fano distorted Raman active A(g) mode. The Fano effect can be explaind by a strong coupling between the discrete Raman active gerade modes and the t1u --> t1u* continuum. Using a classical metallic band description a total electron molecular vibration coupling constant of 0.77 was obtained and the consequences for superconductivity are discussed.

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页码：221 / 225

页数：5

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