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cond-mat.str-el2010★ 9 cited
Antiferromagnetic, metal-insulator, and superconducting phase transitions in underdoped cuprates: Slave-fermion t-J model in the hopping expansion
Akihiro Shimizu, Koji Aoki, Kazuhiko Sakakibara +2
In the present paper, we study a system of doped antiferromagnet in three dimensions at finite temperatures by using the t-J model, a canonical model of strongly-correlated electro…
cond-mat.str-el2010★ 15 cited
Effective field theory for Sp(N) antiferromagnets and its phase structure
Keisuke Kataoka, Shinya Hattori, Ikuo Ichinose
In this paper, we study quantum Sp(N) antiferromagnetic (AF) Heisenberg models in two dimensions (2D) by using the Schwinger-boson representation and the path-integral methods. An…