X-ray photoemission spectroscopy study for the flat YBa2Cu3Oy single-crystal surface prepared by chemical etching and O-2 annealing

Authors
Uchiyama, H Tanaka, N Zama, H Tajima, S Morishita, T Saiki, K Koma, A
Citation
H. Uchiyama et al., X-ray photoemission spectroscopy study for the flat YBa2Cu3Oy single-crystal surface prepared by chemical etching and O-2 annealing, JPN J A P 1, 39(3A), 2000, pp. 1320-1322
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
39
Issue
3A
Year of publication
2000
Pages
1320 - 1322
Database
ISI
SICI code
Abstract
The effect of chemical etching with a HCl/methanol solution on a polished s ample 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.