Affordable Access

Influence of the range of interactions in thin magnetic structures

Authors
Disciplines
  • Chemistry
  • Mathematics

Abstract

The properties of thin magnetic structures are influenced by many length scales that reflect both generic physics and chemical detail. A striking example is the experimentally determined shift of the critical temperature as a function of film thickness. While all systems experience a pronounced suppression in the transition temperature with decreasing film thickness, the magnitude of this shift cannot be reconciled with established theoretical results. By means of detailed Monte Carlo simulations, we address this discrepancy by investigating a model with long range interactions. The model also captures other features of real thin magnets, such as an almost linear temperature dependence for the surface magnetization. Our results demonstrate that the behavior of thin magnetic structures arises from a competition of length scales dictated by their slab-like geometry, the presence of surface boundaries, and crucially, the range of the interactions present. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Long-range exchange interactions in epitaxial laye...

on Physica B Condensed Matter Jan 01, 1996

Mesoscopic organizations of magnetic nanocrystal:...

on Current Opinion in Colloid & I... Jan 01, 2004

Inherent structures for soft long-range interactio...

on The Journal of Chemical Physic... Aug 07, 2011
More articles like this..