EVIDENCE FOR STRONG BOUND-ELECTRON PHONON INTERACTION AT 52 MEV IN YBA2CU3O7

被引：21

作者：

TIMUSK, T ^{[1
]}

TANNER, DB ^{[1
]}

机构：

[1] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611

来源：

PHYSICA C | 1990年 / 169卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90587-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Recent infrared and neutron scattering data provide evidence for strong electron-phonon coupling in the 52 meV/420 cm-1 range in YBa2Cu3O7. From a simple model of two coupled oscillators it is shown that a linear electron-phonon coupling can give the observed antiresonance structure in the frequency-dependent conductivity. We argue that the coupling is to the bound carriers responsible for the midinfrared absorption rather than to the superconducting free carriers. © 1990.

引用

页码：425 / 428

页数：4

共 24 条

[1] SOME EFFECTS OF PHONON DYNAMICS ON ELECTRON LIFETIME, MASS RENORMALIZATION, AND SUPERCONDUCTING TRANSITION-TEMPERATURE [J].