LOW-ENERGY ELECTRON-ENERGY LOSS SPECTROSCOPY ON BI2SR2CAN-1CUNO2N+4+X(N=1, 2)

被引：5

作者：

ANDO, A ^{[1
]}

SAIKI, K ^{[1
]}

KOMA, A ^{[1
]}

EISAKI, H ^{[1
]}

UCHIDA, S ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT APPL PHYS,TOKYO 113,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1991年 / 30卷 / 8A期

关键词：

HIGH-TC SUPERCONDUCTOR; ENERGY LOSS SPECTROSCOPY; SURFACE; ELECTRONIC STRUCTURE; IN-DEPTH PROFILING;

D O I：

10.1143/JJAP.30.L1371

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electronic structures of the high-T(c) superconductor Bi2Sr2Ca(n-1)Cu(n)O2n+4+x (n = 1, 2) have been investigated by low-energy electron energy loss spectroscopy (LEELS) in the valence and shallow core electron excitation region. The LEELS spectra are almost independent of the incident electron energy, that is, of probing depth, indicating rather extended electronic states of those materials. It has been also discovered that the existence of Ca layer does not affect the overall spectra so much except in the Ca 3p core electron excitation region.

引用

页码：L1371 / L1374

页数：4

共 15 条

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