Dynamical Transitions of a Driven Ising Interface
| Autor: | Surajit Sengupta, Manish K. Sahai |
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| Rok vydání: | 2007 |
| Předmět: |
Models
Statistical Series (mathematics) Field (physics) Condensed matter physics Statistical Mechanics (cond-mat.stat-mech) Surface Properties Plane (geometry) Interface (Java) Physics Biophysics FOS: Physical sciences Models Theoretical Magnetics Distribution (mathematics) Orientation (geometry) Condensed Matter::Statistical Mechanics Computer Simulation Ising model Monte Carlo Method Condensed Matter - Statistical Mechanics Sign (mathematics) Mathematics |
| DOI: | 10.48550/arxiv.0711.0831 |
| Popis: | We study the structure of an interface in a three dimensional Ising system created by an external non-uniform field $H({\bf r},t)$. $H$ changes sign over a two dimensional plane of arbitrary orientation. When the field is pulled with velocity ${\bf v}_e$, (i.e. $H({\bf r},t) = H({\bf r - v_e}t)$), the interface undergoes a several dynamical transitions. For low velocities it is pinned by the field profile and moves along with it, the distribution of local slopes undergoing a series of commensurate-incommensurate transitions. For large ${\bf v}_e$ the interface de-pinns and grows with KPZ exponents. Comment: 4 pages 3 .eps figures |
| Databáze: | OpenAIRE |
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