MAGNETIC-SUSCEPTIBILITY FOR THE T-J MODEL

Authors
PRUSCHKE T OBERMEIER T KELLER J
Citation
T. Pruschke et al., MAGNETIC-SUSCEPTIBILITY FOR THE T-J MODEL, Physica. B, Condensed matter, 230, 1997, pp. 895-898
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
230
Year of publication
1997
Pages
895 - 898
Database
ISI
SICI code
0921-4526(1997)230:<895:MFTTM>2.0.ZU;2-A
Abstract
We present results for the dynamical magnetic susceptibility of the t- J model, calculated with the dynamical mean field theory. For J = 0 we find enhanced ferromagnetic correlations but an otherwise relatively q-independent dynamical magnetic susceptibility. For J > 0 the explici t antiferromagnetic exchange leads to a dynamic spin structure factor with the expected peak at the antiferromagnetic Bragg point.