ONE-DIMENSIONAL KONDO-LATTICE AT PARTIAL-BAND FILLING

Authors
HONNER G GULACSI M
Citation
G. Honner et M. Gulacsi, ONE-DIMENSIONAL KONDO-LATTICE AT PARTIAL-BAND FILLING, Physical review letters, 78(11), 1997, pp. 2180-2183
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
11
Year of publication
1997
Pages
2180 - 2183
Database
ISI
SICI code
0031-9007(1997)78:11<2180:OKAPF>2.0.ZU;2-X
Abstract
An effective Hamiltonian for the localized spins in the one-dimensiona l Kondo lattice model is derived via a unitary transformation involvin g a bosonization of delocalized conduction electrons. The effective Ha miltonian is shown to reproduce all the features of the model as ident ified in various numerical simulations, and provides much new informat ion on the ferromagnetic to paramagnetic phase transition and the para magnetic phase.