Spin nematic order in multiple-spin exchange models on the triangular lattice

Details Spin nematic order in multiple-spin exchange models on the triangular lattice Spin nematic order in multiple-spin exchange models on the triangular lattice

2011-11-29

arxiv.org/abs/1111.6668v1

Phys. Rev. Lett. 108, 057206 (2012)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.108.057206

We figure out that the ground state of a multiple-spin exchange model applicable to thin films of solid 3He possesses an octahedral spin nematic order. In the presence of magnetic field, it is deformed into an antiferro-quadrupolar order in the perpendicular spin plane, in which lattice Z3 rotational symmetry is also broken. Furthermore, this system shows a narrow magnetization plateau at half, m/m_{sat}=1/2, which resembles recent magnetization measurement [H. Nema et al., Phys. Rev. Lett. 102, 075301 (2009)].

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