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Magnetic, transport and 151Eu Mössbauer studies on partially doped La1 - x Eux Sr0.2 MnO3 ( 0.04 ≤ x ≤ 0.32) compounds

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Title Magnetic, transport and 151Eu Mössbauer studies on partially doped La1 - x Eux Sr0.2 MnO3 ( 0.04 ≤ x ≤ 0.32) compounds
 
Creator RAKESH KUMAR
RANA, DS
TOMY, CV
PAULOSE, PL
MALIK, SK
 
Subject magnetization
colossal magnetoresistance
mössbauer effect
 
Description Electrical resistivity, magnetic susceptibility and 151Eu Mössbauer studies have been carried out on La1-xEuxSr0.2MnO3 (0.04≤ x 0.32) compounds. As Eu substitution for La increases, the Curie temperature (TC) decreases from 261 K for x=0.04 to 187 K for x=0.16 along with a decrease in the metal–insulator transition temperature. However, the x=0.32 sample shows an increase in TC to 224 K along with an increase in the metal–insulator transition. The 151Eu Mössbauer studies show that all the Eu are in 3+(4f6,J=0) nonmagnetic state. Broadening of the Mössbauer spectra below TC indicates a transferred magnetic hyperfine field at the Eu site.
 
Publisher Elsevier
 
Date 2009-04-29T11:18:52Z
2011-12-08T06:50:01Z
2011-12-26T13:01:49Z
2011-12-27T05:47:05Z
2009-04-29T11:18:52Z
2011-12-08T06:50:01Z
2011-12-26T13:01:49Z
2011-12-27T05:47:05Z
2006
 
Type Article
 
Identifier Physica B: Condensed Matter 378-380, 507-509
0921-4526
10.1016/j.physb.2006.01.219
http://hdl.handle.net/10054/1280
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1280
 
Language en