CORE-LEVEL BINDING-ENERGY AS A PROBE FOR CHARGE-DISTRIBUTIONS IN HIGH-T-C CUPRATES

Authors
NAGOSHI M SYONO Y TACHIKI M FUKUDA Y
Citation
M. Nagoshi et al., CORE-LEVEL BINDING-ENERGY AS A PROBE FOR CHARGE-DISTRIBUTIONS IN HIGH-T-C CUPRATES, Physica. C, Superconductivity, 263(1-4), 1996, pp. 294-297
Citations number
11
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
263
Issue
1-4
Year of publication
1996
Pages
294 - 297
Database
ISI
SICI code
0921-4534(1996)263:1-4<294:CBAAPF>2.0.ZU;2-I
Abstract
The binding energies of Sr 3d(5/2), Ba 3d(5/2), Ca 2p(3/2) and Y 3d(5/ 2) can be a measure of hole concentration in the Cu-O-2 planes For the cuprates. We applied this to Bi2Sr2CaCu2Oy by a combination with the investigation on the Bi 4f(7/2) core level in order to elucidate the c harge distribution in the crystal structure. Changes of the hole conce ntration in the Cu-O-2 planes and charge redistribution caused by redu cing oxygen content and by substituting Y for Ca are compared and disc ussed.