二维大U-Hubbard模型的铁磁相研究

INVESTIGATION ON FERROMAGNETIC PHASE IN THE 2-DIMENSION LARGE-U HUBBARD MODEL

本文利用Zou和Anderson的spinon-holon有效哈密顿量,在较大的库仑排斥U下,通过研究玻色子holon的涨落效应,考虑了平方格点上铁磁性问题。

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).