X-ray photoemission spectroscopy study for the flat YBa2Cu3Oy single-crystal surface prepared by chemical etching and O2 annealing

被引：2
|
作者：
Uchiyama, H
Tanaka, N
Zama, H
Tajima, S
Morishita, T
Saiki, K
Koma, A
机构：
[1] Int Superconduct Technol Ctr, Superconduct Res Lab, Koto Ku, Tokyo 1350062, Japan
[2] Univ Tokyo, Dept Chem, Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan
[3] Univ Tokyo, Grad Sch Frontier Sci, Dept Complex Sci & Engn, Bunkyo Ku, Tokyo 1130033, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2000年 / 39卷 / 3A期
关键词：
YBa2Cu3Oy; single crystal; chemical etching; X-ray photoelectron spectroscopy;
D O I：
10.1143/JJAP.39.1320
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of chemical etching with a HCl/methanol solution on a polished sample of single-crystal YBa2Cu3Oy (001) was investigated by emission-angle-dependent X-ray photoemission spectroscopy (XPS). By chemical etching, the extrinsic Ba state in the surface region was removed without the effect of halogen. The bulk state of Y was also restored in the surface by subsequent annealing in an oxygen atmosphere at 400 degrees C.
引用
收藏
页码：1320 / 1322
页数：3
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