RAMAN-SCATTERING BY A NESTED FERMI-SURFACE

被引：60

作者：

VIROSZTEK, A ^{[1
]}

RUVALDS, J ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT PHYS,CHARLOTTESVILLE,VA 22901

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.67.1657

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Light coupling to energy fluctuations in a nonparabolic conduction band is found to yield a smooth Raman spectrum extending to an energy of 1 eV in the case of intermediate electron-electron scattering between nearly parallel "nested" sections of the Fermi surface. Nesting creates a frequency-dependent damping that produces a Raman line shape which exhibits a surprising proportionality to the optical conductivity. Evidence for the anomalous scattering is found in data on the high-temperature superconductor Bi2Sr2CaCu2O8 and in some rare-earth metals.

引用

页码：1657 / 1666

页数：10

共 31 条

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