Quantum spin nematics, dimerization, and deconfined criticality in Quasi-1D spin-one magnets

Grover, Tarun and Senthil, T (2007) Quantum spin nematics, dimerization, and deconfined criticality in Quasi-1D spin-one magnets. In: Physical Review Letters, 98 (24).

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Abstract

We study theoretically the destruction of spin nematic order due to quantum fluctuations in quasi-one-dimensional spin-1 magnets. If the nematic ordering is disordered by condensing disclinations, then quantum Berry phase effects induce dimerization in the resulting paramagnet. We develop a theory for a Landau-forbidden second order transition between the spin nematic and dimerized states found in recent numerical calculations. Numerical tests of the theory are suggested.

Item Type:	Journal Article
Publication:	Physical Review Letters
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Others
Date Deposited:	11 Jun 2010 04:57
Last Modified:	19 Sep 2010 05:58
URI:	http://eprints.iisc.ac.in/id/eprint/26585

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