Spin wave theory of spin-1/2 XY model with ring exchange on a triangular lattice
نویسندگان
چکیده
منابع مشابه
Spin Bose - metal phase in a spin - 12 model with ring exchange on a two - leg triangular strip
Recent experiments on triangular lattice organic Mott insulators have found evidence for a two-dimensional 2D spin liquid in close proximity to the metal-insulator transition. A Gutzwiller wave function study of the triangular lattice Heisenberg model with a four-spin ring exchange term appropriate in this regime has found that the projected spinon Fermi sea state has a low variational energy. ...
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We study triangular lattice spin-1 /2 system with antiferromagnetic Heisenberg and ring exchanges using variational approach focusing on possible realization of spin-liquid states. Trial spin liquid wave functions are obtained by Gutzwiller projection of fermionic mean-field states and their energetics is compared against magnetically ordered trial states. We find that in a range of the ring ex...
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ژورنال
عنوان ژورنال: Canadian Journal of Physics
سال: 2013
ISSN: 0008-4204,1208-6045
DOI: 10.1139/cjp-2012-0462