Ising films with surface defects
凝聚态物理
2016-08-31 v1
摘要
The influence of surface defects on the critical properties of magnetic films is studied for Ising models with nearest-neighbour ferromagnetic couplings. The defects include one or two adjacent lines of additional atoms and a step on the surface. For the calculations, both density-matrix renormalization group and Monte Carlo techniques are used. By changing the local couplings at the defects and the film thickness, non-universal features as well as interesting crossover phenomena in the magnetic exponents are observed.
引用
@article{arxiv.cond-mat/0007499,
title = {Ising films with surface defects},
author = {M. -C. Chung and M. Kaulke and I. Peschel and M. Pleimling and W. Selke},
journal= {arXiv preprint arXiv:cond-mat/0007499},
year = {2016}
}
备注
8 pages, 12 figures included, submitted to European Physical Journal B