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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/1808.06344 |
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| _version_ | 1866913500776890368 |
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| author | Popov, Ivan S. Popova, Anna P. Prudnikov, Pavel V. |
| author_facet | Popov, Ivan S. Popova, Anna P. Prudnikov, Pavel V. |
| contents | The non-equilibrium annealing of structural disorder in a two-dimensional XY-model leads to coarsening of defects clusters in a cores of spin vortices. We revealed the effect of "inertial" growth of the clusters in coarsening dynamic regime. The calculated transverse stiffness $ρ(p,T)$ of the system in the high-temperature phase $T>T_{\rm BKT}(p)$ becomes negative and has described by a power low $ρ(p,T) \sim T^{-κ}$ with temperature independent exponent $κ=κ(p)$. The dynamical scaling lead to the dynamic dependence of the correlation length $ξ\sim (t / \ln^{q} (t/t_{0}))^{1/z}$ which can be explained by a shift of spin vortices friction constant $γ$ induced by annealed disorder. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1808_06344 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Non-equilibrium vortex annealing of structural disorder in Berezinskii-Kosterlitz-Thouless dynamics of two-dimensional XY-model Popov, Ivan S. Popova, Anna P. Prudnikov, Pavel V. Strongly Correlated Electrons The non-equilibrium annealing of structural disorder in a two-dimensional XY-model leads to coarsening of defects clusters in a cores of spin vortices. We revealed the effect of "inertial" growth of the clusters in coarsening dynamic regime. The calculated transverse stiffness $ρ(p,T)$ of the system in the high-temperature phase $T>T_{\rm BKT}(p)$ becomes negative and has described by a power low $ρ(p,T) \sim T^{-κ}$ with temperature independent exponent $κ=κ(p)$. The dynamical scaling lead to the dynamic dependence of the correlation length $ξ\sim (t / \ln^{q} (t/t_{0}))^{1/z}$ which can be explained by a shift of spin vortices friction constant $γ$ induced by annealed disorder. |
| title | Non-equilibrium vortex annealing of structural disorder in Berezinskii-Kosterlitz-Thouless dynamics of two-dimensional XY-model |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/1808.06344 |