The random mixed spin-1/2 Heisenberg ferromagnet

Authors
Boechat, B Cordeiro, C
Citation
B. Boechat et C. Cordeiro, The random mixed spin-1/2 Heisenberg ferromagnet, J PHYS JPN, 68(4), 1999, pp. 1139-1142
Citations number
13
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
00319015 → ACNP
Volume
68
Issue
4
Year of publication
1999
Pages
1139 - 1142
Database
ISI
SICI code
0031-9015(199904)68:4<1139:TRMSHF>2.0.ZU;2-4
Abstract
The mean field renormalization group approach has been used to investigate the random mixed spin-1/2 Heisenberg ferromagnet in the two and three-dimen sions. The model can describe an isotropic Heisenberg material doped at ran dom with Ising-like anisotropy impurity atoms. The critical surfaces are di splayed graphically in the complete parameter space. The behaviours observe d by incorporating the effect of randomness in the d = 2 and d = 3 systems are discussed.