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Chiral order in spin-s xy chains (2008).
| Content Provider | CiteSeerX |
|---|---|
| Author | Jolicœur, Thierry |
| Abstract | We consider the issue of chiral ordering in spin chains for an arbitrary value of the spins S. By use of bosonization according to a scheme developped by H.-J. Schulz, we obtain the phase diagram of the chain with XY exchange couplings between nearest and next-to-nearest neighbors. We obtain a satisfactory picture including a so-called chiral spin nematic phase which is gapless, has long-range chiral order and incommensurate spin correlations. We perform a stability analysis of this phase and point out that this analysis is in conflict with existing DMRG results that shows a difference between integer and half-integer spin case. Quantum antiferromagnetic spin chains display a variety of phases that have no classical counterpart. This variety is even increased if we consider the effect of frustration. Many studies 1) have been devoted in the past to the simple AF chain with nearest neighbor exchange J1 and next-to-nearest neighbor J2. In the isotropic |
| File Format | |
| Publisher Date | 2008-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spin-s Xy Chain Chiral Order Neighbor Exchange J1 Spin Chain Next-to-nearest Neighbor J2 Dmrg Result Satisfactory Picture So-called Chiral Spin Nematic Phase Many Study Half-integer Spin Case Xy Exchange Coupling Simple Af Chain Spin Correlation Classical Counterpart Quantum Antiferromagnetic Spin Chain Stability Analysis Arbitrary Value Next-to-nearest Neighbor Long-range Chiral Order Phase Diagram |
| Content Type | Text |
