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Possible ferro-spin nematic order in NiGa2S4

Bhattacharjee, Subhro and Shenoy, Vijay B and Senthil, T (2006) Possible ferro-spin nematic order in NiGa2S4. In: Physical Review B 74, 74 (9). 092406-1-092406-4.

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We explore the possibility that the spin-1 triangular lattice magnet NiGa2S4 may have a ferronematic ground state with no frozen magnetic moment but a uniform quadrupole moment. Such a state may be stabilized by biquadratic spin interactions. We describe the physical properties of this state and suggest experiments to help verify this proposal. We also contrast this state with a "noncollinear" nematic state proposed earlier by Tsunetsugu and Arikawa [J. Phys. Soc. Jpn. 75, 083701 (2006)] for NiGa2S4.

Item Type: Journal Article
Publication: Physical Review B 74
Publisher: American Physical Society
Additional Information: Copyright of this article belongs to American Physical Society.
Keywords: nickel compounds;gallium compounds;ferromagnetic materials, spin systems;ground states;quadrupole moments.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 06 Apr 2009 10:00
Last Modified: 19 Sep 2010 04:58
URI: http://eprints.iisc.ac.in/id/eprint/17777

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