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VALENCE FLUCTUATION IN THE DILUTE EU SYSTEMS EU-RPD2SI2, EU-RCU2SI2, AND EU-RNISI2 (R=LA, Y, AND YB)

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Title VALENCE FLUCTUATION IN THE DILUTE EU SYSTEMS EU-RPD2SI2, EU-RCU2SI2, AND EU-RNISI2 (R=LA, Y, AND YB)
 
Creator PATIL, S
NAGARAJAN, R
GODART, C
KAPPLER, JP
GUPTA, LC
PADALIA, BD
VIJAYARAGHAVAN, R
 
Subject mixed-valence
 
Description Eu-151 Mossbauer and L3-edge measurements have been made on dilute europium alloys Eu0.05Y0.95Pd2Si2, Eu0.05Yb0.95Pd2Si2, Eu0.05La0.95Cu2Si2, Eu0.05Yb0.95CU2Si2, Eu0.05La0.95NiSi2, and Eu0.05Y0.95NiSi2. We show that Eu ions exhibit valence-fluctuation phenomena in all these hosts. The valence of Eu ions in these hosts seems to be governed by their respective nearest-neighbor distance rather than unit-cell volume. Deviations from this behavior are pointed out and discussed.
 
Publisher AMERICAN PHYSICAL SOC
 
Date 2011-07-18T09:27:34Z
2011-12-26T12:50:32Z
2011-12-27T05:35:45Z
2011-07-18T09:27:34Z
2011-12-26T12:50:32Z
2011-12-27T05:35:45Z
1993
 
Type Article
 
Identifier PHYSICAL REVIEW B, 47(14), 8794-8800
0163-1829
http://dx.doi.org/10.1103/PhysRevB.47.8794
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4860
http://hdl.handle.net/10054/4860
 
Language en