{"title":"Kinetics of Discrete Kinks and Domain Walls","authors":"B. V. Petukhov","doi":"10.1134/S1063774525600607","DOIUrl":null,"url":null,"abstract":"<p>The kinetics of kinks and domain walls in quasi-one-dimensional systems is described within the framework of a model intermediate between the sharp kink model and the continuum model of an elastic string. The effects resulting from the discrete structure of crystalline materials are considered, including the periodic inhomogeneity of the energy relief for kink migration. Within a transparent approximation using a minimum number of internal variables, the dependence of the Peierls barriers on the driving force is calculated, and the transition between static and dynamic regimes is described. The theory is based on the universal Frenkel–Kontorova model and can be applied to extended systems of various nature.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"70 4","pages":"553 - 559"},"PeriodicalIF":0.5000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774525600607","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The kinetics of kinks and domain walls in quasi-one-dimensional systems is described within the framework of a model intermediate between the sharp kink model and the continuum model of an elastic string. The effects resulting from the discrete structure of crystalline materials are considered, including the periodic inhomogeneity of the energy relief for kink migration. Within a transparent approximation using a minimum number of internal variables, the dependence of the Peierls barriers on the driving force is calculated, and the transition between static and dynamic regimes is described. The theory is based on the universal Frenkel–Kontorova model and can be applied to extended systems of various nature.
期刊介绍:
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.