EFFECTIVE INTERSUBLATTICE EXCHANGE COUPLING IN TB(FE1-XTX)(2) (T=MN, GA) INTERMETALLICS FROM MOLECULAR-FIELD THEORY CALCULATION

Authors
TANG YJ LUO HL PAN SM
Citation
Yj. Tang et al., EFFECTIVE INTERSUBLATTICE EXCHANGE COUPLING IN TB(FE1-XTX)(2) (T=MN, GA) INTERMETALLICS FROM MOLECULAR-FIELD THEORY CALCULATION, Journal of magnetism and magnetic materials, 152(1-2), 1996, pp. 70-74
Citations number
18
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
152
Issue
1-2
Year of publication
1996
Pages
70 - 74
Database
ISI
SICI code
0304-8853(1996)152:1-2<70:EIECIT>2.0.ZU;2-2
Abstract
The intersublattice exchange coupling J(RT) was calculated for Tb(Fe1- xTx)(2) (T = Mn, Ga) intermetallics on the basis of a two-sublattice m olecular-field theory. The results are compared with experimental data and ab initio calculations. A decrease of J(RT) due to Mn/Ga substitu tion in the compounds was found, and is attributed to the reduction of the R-Fe coupling pairs. Values for the exchange coupling constant J( TT) and J(RR) for the compounds were also obtained through calculation s.