首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Interplay of topological and structural defects in the two-dimensional XY model
Authors:O Kapikranian  B Berche
Institution:a Laboratoire de Physique des Matériaux, UMR CNRS 7556, Université Henri Poincaré, Nancy 1, B.P. 239, F-54506 Vandœuvre les Nancy Cedex, France
b Institute for Condensed Matter Physics, National Academy of Sciences of Ukraine, UA-79011 Lviv, Ukraine
c Institut für Theoretische Physik, Johannes Kepler Universität Linz, A-4040 Linz, Austria
Abstract:We analyze an effect of quenched non-magnetic impurities on properties of the two-dimensional XY model. In particular, we are interested in the interaction between the impurities and topological defects governing the Berezinskii-Kosterlitz-Thouless transition. We make use of two different analytical approaches: the phenomenological theory of topological defects and the Villain model. As a practical illustration of the obtained results a rough estimation of the transition temperature as a function of the concentration of dilution is made and compared to the available Monte Carlo data.
Keywords:05  50  +q  75  10
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号