EPR of YBa2Cu3O6+y: models of paramagnetic centers with g approximate to 4.2

Authors
Eremina, R Eremin, M Gafurov, M Ivanshin, V Kurkin, I Kurzin, S Keller, H Gutmann, M
Citation
R. Eremina et al., EPR of YBa2Cu3O6+y: models of paramagnetic centers with g approximate to 4.2, PHYSICA B, 284, 2000, pp. 917-918
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
284
Year of publication
2000
Part
1
Pages
917 - 918
Database
ISI
SICI code
0921-4526(200007)284:<917:EOYMOP>2.0.ZU;2-J
Abstract
A systematic investigation of the EPR line with g approximate to 4.2 in YBa 2Cu3O6+y has been carried out. From the temperature dependence of the line integrated intensity we have deduced that the line is due to paramagnetic c enters with integer spin. The energy interval between the ground singlet st ate and the excited state with S = 1 was estimated as 8-10 K. Energy levels of the cluster Cu2+(S = 1/2)-"Cu3+(S = 0)"-Cu2+(S = 1/2) were calculated f or different sets of parameters. (C) 2000 Elsevier Science B.V. All rights reserved.