Monday, April 22, 2013

1304.5463 (Alexey Sizanov et al.)

Spin nematic states in antiferromagnets containing ferromagnetic bonds    [PDF]

Alexey Sizanov, Arseny Syromyatnikov
The majority of recent works devoted to spin nematic phases deal with either frustrated magnets or with those described by Hamiltonians with large non-Heisenberg terms. We show in the present study that nonfrustrated antiferromagnets (AFs) containing ferromagnetic (FM) bonds can show nematic phases in a strong magnetic field. Among the particular spin systems discussed are a ladder with FM rungs, two AF layers coupled ferromagnetically, a chain containing alternating AF and FM bonds, and an AF anisotropic spin-1 chain.
View original: http://arxiv.org/abs/1304.5463

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