Record Details

STUDY OF Y AND LU IRON GARNETS USING BETHE-PEIERLS-WEISS METHOD

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title STUDY OF Y AND LU IRON GARNETS USING BETHE-PEIERLS-WEISS METHOD
 
Creator GOVEAS, N
MUKHOPADHYAY, G
MUKHOPADHYAY, P
 
Subject molecular field
 
Description We study here the magnetic properties of Y- and Lu- Iron Garnets using the Bethe-Peierls-Weiss method modified to suit complex systems like these Garnets. We consider these Garnets as described by Heisenberg Hamiltonian with two sublattices (a,d) and determine the exchange interaction parameters J(ad), J(aa) and J(dd) by matching the exerimental susceptibility curves. We find J(aa) and J(dd) to be much smaller than those determined by Neel theory, and consistent with those obtained by the study of spin wave spectra; the spin wave dispersion relation constant obtained using these parameters gives good agreement with the experimental values.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-26T17:41:45Z
2011-12-26T12:57:33Z
2011-12-27T05:43:11Z
2011-08-26T17:41:45Z
2011-12-26T12:57:33Z
2011-12-27T05:43:11Z
1994
 
Type Article
 
Identifier SOLID STATE COMMUNICATIONS, 92(7), 573-577
0038-1098
http://dx.doi.org/10.1016/0038-1098(94)00623-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11392
http://hdl.handle.net/10054/11392
 
Language en