ELECTRON ENERGY-LOSS STUDIES OF HIGH-TC SUPERCONDUCTORS YBA2CU3O7-X AND BI2SR2CACU2O8

被引:5
作者
NAKAI, S
NUCKER, N
ROMBERG, H
ALEXANDER, M
FINK, J
机构
[1] Utsunomiya University, Utsunomiya
[2] Kernforschungszentrum Karlsruhe, INFP, Karlsruhe
关键词
D O I
10.1088/0031-8949/41/4/049
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The electronic structure of the high temperature superconductors, YBa2-Cu3O7-x and Bi2Sr2CaCu2O8 have been studied by high energy electron energy-loss spectroscopy in transmission mode. We could derive the dielectric functions from the low energy loss spectra below ∼ 40eV. These dielectric functions give information on plasmons, interband transitions and low-lying core levels. From the core electron excitation spectra, we obtain information on the unoccupied electronic states. © 1990 IOP Publishing Ltd.
引用
收藏
页码:596 / 600
页数:5
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