Interplay between quasi-periodicity and disorder in quantum spin chains in a magnetic field
arXiv:cond-mat/0201443 · doi:10.1103/PhysRevB.66.052419
Abstract
We study the interplay between disorder and a quasi periodic coupling array in an external magnetic field in a spin-1/2 XXZ chain. A simple real space decimation argument is used to estimate the magnetization values where plateaux show up. The latter are in good agreement with exact diagonalization results on fairly long XX chains. Spontaneous susceptibility properties are also studied, finding a logarithmic behaviour similar to the homogeneously disordered case.
5 RevTeX pages, 5 Postscript figures included
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Cited by in corpus (6)
- Low-energy properties of aperiodic quantum spin chains
- New Universality Class in the S=1/2 Fibonacci Heisenberg Chains
- Aperiodic quantum XXZ chains: Renormalization-group results
- Topological spin excitations in Harper-Heisenberg spin chains
- Real Space Renormalization Group Study of the S=1/2 XXZ Chains with Fibonacci Exchange Modulation
- Anisotropic Heisenberg model on hierarchical lattices with aperiodic interactions: a renormalization-group approach