Spin Liquid in the Multiple-Spin Exchange model on the Triangular lattice: 3He on graphite

Phys. Rev. Lett. 81, 1098 (1998) Using exact diagonalizations, we investigate the T=0 phase diagram of the Multi-Spin Exchange (MSE) model on the triangular lattice: we find a transition separating a ferromagnetic phase from a non-magnetic gapped Spin Liquid phase. Systems far enough from the ferrom...

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Bibliographic Details
Main Authors Misguich, G, Bernu, B, Lhuillier, C, Waldtmann, C
Format Journal Article
LanguageEnglish
Published 12.03.1998
Subjects
Physics - Strongly Correlated Electrons
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Summary:Phys. Rev. Lett. 81, 1098 (1998) Using exact diagonalizations, we investigate the T=0 phase diagram of the Multi-Spin Exchange (MSE) model on the triangular lattice: we find a transition separating a ferromagnetic phase from a non-magnetic gapped Spin Liquid phase. Systems far enough from the ferromagnetic transition have a metamagnetic behavior with magnetization plateaus at m/m_sat=0 and 1/2. The MSE has been proposed to describe solid 3He films adsorbed onto graphite, thus we compute the MSE heat capacity for parameters in the low density range of the 2nd layer and find a double-peak structure.
DOI:10.48550/arxiv.cond-mat/9803144