Generalized Schwinger boson mean field theory for two-dimensional SU(4) symmetric spin-orbital antiferromagnet

Details Generalized Schwinger boson mean field theory for two-dimensional SU(4) symmetric spin-orbital antiferromagnet Generalized Schwinger boson mean field theory for two-dimensional SU(4) symmetric spin-orbital antiferromagnet

2003-04-02

arxiv.org/abs/cond-mat/0304040v1

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, no figure, submitted to ICM-2003

Scientific paper

A generalized Schwinger boson representation is proposed to describe the two-dimensional SU(4) symmetric spin-orbital quantum antiferromagnet. A uniform mean field solution gives rise to an antiferromagnetic long range ordered state with a small staggered magnetization $m_{s}=0.07566$, and the recent quantum Monte Carlo simulations on rather large lattice sizes have provided strong evidence to support these mean field results.

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