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Low-Temperature Broken-Symmetry Phases Of Spiral Antiferromagnets
PHYSICAL REVIEW LETTERS, no. 25 (2004): 257206-257206
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摘要
We study Heisenberg antiferromagnets with nearest- (J(1)) and third- (J(3)) neighbor exchange on the square lattice. In the limit of spin S --> infinity, there is a zero temperature ( T) Lifshitz point at J(3) = 1/4 J(1), with long-range spiral spin order at T = 0 for J(3) > 1/4 J(1). We present classical Monte Carlo simulations and a the...更多
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