Quantum spin nematics, dimerization, and deconfined criticality in quasi-one dimensional spin-1 magnets

Details Quantum spin nematics, dimerization, and deconfined criticality in quasi-one dimensional spin-1 magnets Quantum spin nematics, dimerization, and deconfined criticality in quasi-one dimensional spin-1 magnets

2007-01-16

arxiv.org/abs/cond-mat/0701361v1

Physics

Condensed Matter

Strongly Correlated Electrons

4+ pages

Scientific paper

10.1103/PhysRevLett.98.247202

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.

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