An investigation of the europium valence in EuCu1.75P2 by Eu Mossbauer andEu L-III-Edge X-ray absorption spectroscopy

Authors
Bornick, RM Stacy, AM Taylor, RD Kwei, GH
Citation
Rm. Bornick et al., An investigation of the europium valence in EuCu1.75P2 by Eu Mossbauer andEu L-III-Edge X-ray absorption spectroscopy, J SOL ST CH, 144(2), 1999, pp. 252-254
Citations number
10
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
ISSN journal
00224596 → ACNP
Volume
144
Issue
2
Year of publication
1999
Pages
252 - 254
Database
ISI
SICI code
0022-4596(199905)144:2<252:AIOTEV>2.0.ZU;2-A
Abstract
The europium valence for EuCu1.75P2 is examined by Eu Mossbauer spectroscop y and Eu L-III-edge X-ray absorption spectroscopy, On the basis of previous measurements of related phases with the ThCr2Si2 structure-type, the europ ium valence in EuCu1.75P2 is expected to be intermediate valent or trivalen t, In contrast, divalent europium is observed. This result is explained on the basis of a band argument in which the conduction band is filled, and th us, there is an extra electron in the Eu 4f(7) state. (C) 1999 Academic Pre ss.