Spin nematic states in spin-1 antiferromagnets with easy-axis anisotropy |
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| Authors: | A V Sizanov A V Syromyatnikov |
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| Institution: | 1152. Konstantinov Petersburg Nuclear Physics Institute, National Research Centre Kurchatov Institute, Gatchina, 188300, Russia
2152. Faculty of Physics, St. Petersburg State University, St. Petersburg, 198504, Russia
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| Abstract: | It is well known that spin nematic phases can appear in either frustrated magnets or in those described by Hamiltonians with large exotic non-Heisenberg terms like biquadratic exchange. We show in the present study that non-frustrated spin-1 1D, 2D, and 3D antiferromagnets with single-ion easy-axis anisotropy can show nematic phases in strong magnetic field. For 1D case we support our analytical results by numerical ones. |
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