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cond-mat.str-el2001
The Net Spin Model
H. Q. Lin, J. L. Shen, H. Y. Shik
We study a set of exactly soluble spin models in one and two dimensions for any spin . Its ground state, the excitation spectrum, quantum phase transition points, as well as dim…
cond-mat.str-el1998
Ground State of the Double Exchange Model
Liang-Jian Zou, Qing-Qi Zheng, H. Q. Lin
We invesitgate the electronic correlation effect on the ground-state properties of the double exchange model for manganites by using a semiclassical approach and the slave-boson te…