LOW-ENERGY ION-SCATTERING SPECTROSCOPY OBSERVATIONS OF C-AXIS-ORIENTED YBA2CU3O7-X THIN-FILMS - EFFECTS OF IN-VACUUM ANNEALING

被引：23

作者：

TANAKA, S

NAKAMURA, T

IIYAMA, M

YOSHIDA, N

TAKANO, S

SHOJI, F

OURA, K

机构：

[1] SUMITOMO ELECT IND LTD, OSAKA RES LABS, KONOHANA KU, OSAKA 554, JAPAN

[2] OSAKA UNIV, FAC ENGN, SUITA, OSAKA 565, JAPAN

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 27期

关键词：

D O I：

10.1063/1.105604

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The atomic structure of (001) surfaces of c-axis-oriented YBa2Cu3O7-x (YBCO) thin films was studied by low-energy ion scattering spectroscopy (ISS) after annealing in ultrahigh vacuum. This is the first report on the surface analysis of superconducting oxide evaluated by ISS. A clean surface of YBCO (001) 1 X 1 is produced by annealing at around 500-degrees-C. The surface structure is discussed in terms of the blocking and the nonblocking effects caused by the desorption of O(4) atoms. We conclude that the (001) surfaces are stabilized by Cu(1)-O chains.

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页码：3637 / 3639

页数：3

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