Record Details

Magnetic properties of magnetite thin films close to the Verwey transition

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Magnetic properties of magnetite thin films close to the Verwey transition
 
Creator BOHRA, M
PRASAD, S
VENKETARAMANI, N
KUMAR, N
SAHOO, SC
KRISHNAN, R
 
Subject fe3o4 films
behavior
target
verwey transition
magnetization
magnetite
 
Description Temperature dependence of the magnetic properties of magnetite thin film across the Verwey transition has been investigated. As the temperature is decreased, the magnetization of the film in a fixed field showed a sharp decrease close to the Verwey transition temperature (T(v)). The M-H loops of the film have been recorded at various temperatures below and above T(v). It is found that film does no saturate at any temperature and saturation becomes more difficult below T(v). While cooling through T(v), the extrapolated value of magnetization to infinite field (Q), calculated from the numerical fit 4 pi M = Q [1-(H*/H)(1/2)], does not show a drop, but the coefficient indicating difficulty in saturation (H*) shows a sharp rise as does the coercivity. (C) 2009
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-25T17:36:08Z
2011-12-26T12:51:37Z
2011-12-27T05:37:54Z
2011-07-25T17:36:08Z
2011-12-26T12:51:37Z
2011-12-27T05:37:54Z
2009
 
Type Article
 
Identifier JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 321(22), 3738-3741
0304-8853
http://dx.doi.org/10.1016/j.jmmm.2009.07.026
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6745
http://hdl.handle.net/10054/6745
 
Language en