| Title | Dynamical transitions of a driven Ising interface. | ||
| Author | Sahai, Manish K; Sengupta, Surajit | ||
| Journal | Phys Rev E Stat Nonlin Soft Matter Phys | Publication Year/Month | 2008-Mar |
| PMID | 18517444 | PMCID | -N/A- |
| Affiliation | 1.Satyendra Nath Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700 098, India. | ||
We study the structure of an interface in a three-dimensional Ising system created by an external nonuniform field H(r,t) . H changes sign over a two-dimensional plane of arbitrary orientation. When the field is pulled with velocity v(e) , [i.e., H(r,t)=H(r-v(e)t) ], the interface undergoes 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 v(e) the interface depins and grows with Kardar-Parisi-Zhang exponents.