Half-Step magnetization in the polyoxometalate family with {Cu3}-type triangular spin ring
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چکیده
منابع مشابه
Half-Step magnetization in the polyoxometalate family with {Cu3}-type triangular spin ring
We report on pulsed field magnetization and ESR measurements of the family of copper(II)-substituted polyoxotungstates [Cu3(H2O)3(α-XW9O33)2] 12− (X=As, Sb) where the three Cu (S=1/2) ions form an antiferromagnetically-coupled triangle. The distinct features are the observation of half step magnetization and hysteresis loops as well as asymmetric/symmetric magnetization between a positive and n...
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چکیده ندارد.
Critical spin liquid at 13 magnetization in a spin - 1 2 triangular antiferromagnet
Jason Alicea1 and Matthew P. A. Fisher2 1Physics Department, University of California, Santa Barbara, California 93106, USA 2Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA !Received 10 February 2007; revised manuscript received 23 February 2007; published 10 April 2007" Although magnetically ordered at low temperatures, the spin2 triangul...
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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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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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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2006
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/51/1/020