Superconductivity in fullerides

被引:877
作者
Gunnarsson, O
机构
关键词
D O I
10.1103/RevModPhys.69.575
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Experimental studies of the superconductive properties of fullerides are briefly reviewed. Theoretical calculations of the electron-phonon coupling, in particular for the intramolecular phonons, are discussed extensively. The calculations are compared with coupling constants deduced from a number of different experimental techniques. It is discussed why A(3)C(60) are not Mott-Hubbard insulators, in spite of the large Coulomb interaction. Estimates of the Coulomb pseudopotential mu*, describing the effect of the Coulomb repulsion on the superconductivity, as well as possible electronic mechanisms for the superconductivity, are reviewed. The calculation of various properties within the Migdal-Eliashberg theory and attempts to go beyond this theory are described.
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页码:575 / 606
页数:32
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