Phase Transitions in Uniaxial Antiferromagnets

概要

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We study an instability of the antiferromagnetic phase when subjected to an external field along the easy axis of the uniaxial antiferromagnet. This instability leads to a formation of a magnetic order with more than two sublattices. This instability occurs when the intra-sublattice exchange is also antiferromgnetic, and it may happen for fields smaller than the critical fields for the transition to the spin-flop or intermediate phases.
社団法人日本物理学会の論文
1974-10-15