Open AccessINVESTIGATION ON FERROMAGNETIC PHASE IN THE 2-DIMENSION LARGE-U HUBBARD MODEL
Author(s) -
Ding-Guo Li,
Zheng Rui-Lin,
Lian Hu
Publication year - 1992
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.41.323
Subject(s) - spinon , ferromagnetism , condensed matter physics , physics , hamiltonian (control theory) , hubbard model , square lattice , coulomb , boson , slave boson , lattice (music) , quantum mechanics , superconductivity , electron , antiferromagnetism , ising model , mathematical optimization , mathematics , acoustics
From Zou and Anderson's spinon-bolon effective Hamiltonian, for very large Coulomb repulsion U, we consider the problem of ferromagnetism on the square lattice by studying the fluctuation effect of bosons (holons).