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|
|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|
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