Topological Defects and the Spin Glass Phase of Cuprates
arXiv:cond-mat/0005486 · doi:10.1209/epl/i2001-00600-6
Abstract
We propose that the spin glass phase of cuprates is due to the proliferation of topological defects of a spiral distortion of the antiferromagnet order. Our theory explains straightforwardly the simultaneous existence of short range incommensurate magnetic correlations and complete a-b symmetry breaking in this phase. We show via a renormalization group calculation that the collinear O(3)/O(2) symmetry is unstable towards the formation of local non-collinear correlations. A critical disorder strength is identified beyond which topological defects proliferate already at zero temperature.
7 pages, 2 figures. Final version with some changes and one replaced figure
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Cited by in corpus (8)
- Magnetic neutron scattering in hole doped cuprate superconductors
- Spin-glass phase of cuprates
- Magnetic Properties and Phase Diagram of Li-doped La(2)CuO(4): Common Magnetic Response of Hole-doped CuO2 Planes
- Dynamics of topological defects in a spiral: a scenario for the spin-glass phase of cuprates
- Charge pairing, superconducting transition and supersymmetry in high-temperature cuprate superconductors
- Interplay of topology and geometry in frustrated 2d Heisenberg magnets
- Dissipative dynamics of topological defects in frustrated Heisenberg spin systems
- Topological stripelike coreless textures with inner incommensurability in two-dimensional Heisenberg antiferromagnet