Case study of the uniaxial anisotropic spin-1 bilinear-biquadratic Heisenberg model on a triangular lattice
Data(s) |
06/10/2014
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Resumo |
<p>We study the spin-1 model on a triangular lattice in the presence of a uniaxial anisotropy field using a cluster mean-field (CMF) approach. The interplay among antiferromagnetic exchange, lattice geometry, and anisotropy forces Gutzwiller mean-field approaches to fail in a certain region of the phase diagram. There, the CMF method yields two supersolid phases compatible with those present in the spin-1/2 XXZ model onto which the spin-1 system maps. Between these two supersolid phases, the three-sublattice order is broken and the results of the CMF approach depend heavily on the geometry and size of the cluster. We discuss the possible presence of a spin liquid in this region.</p> |
Identificador | |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Moreno-Cardoner , M , Perrin , H , Paganelli , S , De Chiara , G & Sanpera , A 2014 , ' Case study of the uniaxial anisotropic spin-1 bilinear-biquadratic Heisenberg model on a triangular lattice ' Physical Review B (Condensed Matter) , vol 90 , no. 14 , 144409 . DOI: 10.1103/PhysRevB.90.144409 |
Palavras-Chave | #PHASE-TRANSITIONS #ANTIFERROMAGNETS |
Tipo |
article |