MOSSBAUER STUDY OF EUBA2(CU(57FE))3O7-D SUPERCONDUCTOR AND PRBA2(CU(57FE))3O7-D NON-SUPERCONDUCTOR

Authors
KUZMANN E HOMONNAY Z NAGY S GAL M VERTES A
Citation
E. Kuzmann et al., MOSSBAUER STUDY OF EUBA2(CU(57FE))3O7-D SUPERCONDUCTOR AND PRBA2(CU(57FE))3O7-D NON-SUPERCONDUCTOR, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 76(1-4), 1993, pp. 328-330
Citations number
12
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
76
Issue
1-4
Year of publication
1993
Pages
328 - 330
Database
ISI
SICI code
0168-583X(1993)76:1-4<328:MSOESA>2.0.ZU;2-F
Abstract
Mossbauer spectroscopy and X-ray diffractometry were used to study non -superconducting (PrBa2Cu3(Fe)O7-d)-Fe-57 and superconducting (EuBa2Cu 3(Fe)O7-d)-Fe-57 perovskites. Significant differences were observed in the Mossbauer parameters of Eu- and Pr-containing isostructural cupra tes. A relatively high isomer shift was found to be characteristic of iron atoms being present at Cu(1) site in the Pr-containing 1-2-3 comp ound. This can be considered as a consequence of the suppression of su perconductivity, by hole-filling, or by hybridization of Pr states wit h 0 and Cu states, via charge transfer mechanism between the Cu(1)-O c hain and Cu(2)-O plane.