NEUTRON-SCATTERING STUDY OF THE ELECTRON PHONON INTERACTION IN SUPERCONDUCTING NIOBIUM

被引：1
|
作者：
BOOTHROYD, AT
STIRLING, WG
CURRAT, R
BERNHOEFT, NR
PAUL, DMK
SHIHUB, SI
机构：
[1] UNIV KEELE,DEPT PHYS,KEELE ST5 5BG,STAFFS,ENGLAND
[2] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
[3] UNIV DURHAM,DEPT PHYS,DURHAM DH1 3LE,ENGLAND
来源：
PHYSICA B | 1992年 / 180卷
关键词：
D O I：
10.1016/0921-4526(92)90755-H
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have measured the lifetime and frequency of acoustic phonons in niobium by triple-axis neutron spectroscopy over a range of temperatures spanning the superconducting transition temperature, and have extracted quantitative information on the q and polarisation dependence of the electron-phonon interaction. The behaviour of the transverse modes supports a simple calculation based on the BCS theory of superconductivity, but the damping of a longitudinal mode appears to be unusually severe.
引用
收藏
页码：348 / 350
页数：3
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