Resonant Photoemission from the Surface of a High-Temperature Y-Ba-Cu-O Superconductor | Sciact - CRIS-system of Boreskov Institute of Catalysis

Resonant Photoemission from the Surface of a High-Temperature Y-Ba-Cu-O Superconductor Full article

Conference

8th Conference on Synchrotron Radiation Utilization
18-22 Aug 1988 , Новосибирск

Journal

Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002

Output data

Year: 1989, Volume: 282, Number: 2-3, Pages: 688-691 Pages count : 4 DOI: 10.1016/0168-9002(89)90082-X

Tags

Accelerators, Synchrotron--Applications; Photoemission

Authors

Devyatov V.G. ¹ , Koshcheev S.V. ¹ , Cherkashin A.E. ¹ , Gluskin E.S. ² , Dudnikov A.V. ³ , Dudnikov V.G. ² , Sood A.K. ⁴ , Sahnie V.S. ⁵ , Ventkataraman G. ⁴

Affiliations

1	Institute of Catalysis, 630090 Novostbrrsk, USSR
2	Institute of Nuclear Physics, 630090 Novosibirsk, USSR
3	Novosibirsk University, 630090 Novosibirsk, USSR
4	Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India
5	Bhabha Atomic Research Centre, Trombay, Bombay 400 085, India

Photoemission measurements using synchrotron radiation are reported on YBa2Cu3O7−x having a superconducting transition temperature of 90 K. The experiments were performed over a photon energy range of 40–161 eV as well as using Mg X-rays. An unusual enhancement of photoemission intensity associated with Ba(5p) and Ba(5s) levels was observed for a photon energy of ∼104 eV. Our results suggest a different chemical composition of the surface and volume, two types of oxygen sites in the material, and a predominantly monovalent state of copper after Ar+ etching.

Devyatov V.G. , Koshcheev S.V. , Cherkashin A.E. , Gluskin E.S. , Dudnikov A.V. , Dudnikov V.G. , Sood A.K. , Sahnie V.S. , Ventkataraman G.
Resonant Photoemission from the Surface of a High-Temperature Y-Ba-Cu-O Superconductor
Nuclear Instruments and Methods in Physics Research Section A. 1989. V.282. N2-3. P.688-691. DOI: 10.1016/0168-9002(89)90082-X WOS Scopus РИНЦ ANCAN OpenAlex

Published print:	Oct 10, 1989
Published online:	Oct 29, 2002

Web of science:	WOS:A1989AW92200080
Scopus:	2-s2.0-0024749327
Elibrary:	31166671
Chemical Abstracts:	1990:13753
Chemical Abstracts (print):	112:13753
OpenAlex:	W1988845926

DB	Citing
Web of science	3
Scopus	3
Elibrary	3
OpenAlex	3