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Magnetic and photomagnetic studies in Nd0.7Sr0.3CoO3

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Title Magnetic and photomagnetic studies in Nd0.7Sr0.3CoO3
 
Creator BAHADUR, DHIRENDRA
ASTHANA, SAKET
CARBONERA, C
DESPLANCHES, C
LÉTARD, J F
 
Subject antiferromagnetism
ferromagnetism
magnetic materials
phase separation
 
Description We report magnetic and photomagnetic studies on polycrystalline Nd0.7Sr0.3CoO3. Strong irreversibility in field cooled and zero field cooled data is observed. The hysteresis plot exhibits a very high coercivity at low temperatures. On photon irradiation, a decrease in the coercivity and an irreversible magnetization enhancement are observed. The analysis of all these data suggest that microscopic phase separation of competing ferromagnetism and antiferromagnetism and/or light-induced spin conversion processes among low, intermediate and high spin states of cobalt ions are responsible for all the properties.
 
Publisher Elsevier
 
Date 2009-05-21T04:31:50Z
2011-12-08T07:27:37Z
2011-12-26T13:02:15Z
2011-12-27T05:48:12Z
2009-05-21T04:31:50Z
2011-12-08T07:27:37Z
2011-12-26T13:02:15Z
2011-12-27T05:48:12Z
2007
 
Type Article
 
Identifier Solid State Communications 142(3), 132-136
0038-1098
10.1016/j.ssc.2007.02.006
http://hdl.handle.net/10054/1396
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1396
 
Language en