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Title: A new scaling approach for the mesoscale simulation of magnetic domain structures using Monte Carlo simulations

Abstract

A new scaling approach has been proposed for the spin exchange and the dipole–dipole interaction energy as a function of the system size. The computed scaling laws are used in atomistic Monte Carlo simulations of magnetic moment evolution to predict the transition from single domain to a vortex structure as the system size increases. The width of a 180° – domain wall extracted from the simulated structures is in close agreement with experimentally values for an F–Si alloy. In conclusion, the transition size from a single domain to a vortex structure is also in close agreement with theoretically predicted and experimentally measured values for Fe.

Authors:
 [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376339
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Magnetism and Magnetic Materials; Journal Volume: 432; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Monte Carlo; Scaling; Domain; Simulation

Citation Formats

Radhakrishnan, B., Eisenbach, M., and Burress, Timothy A.. A new scaling approach for the mesoscale simulation of magnetic domain structures using Monte Carlo simulations. United States: N. p., 2017. Web. doi:10.1016/j.jmmm.2017.01.064.
Radhakrishnan, B., Eisenbach, M., & Burress, Timothy A.. A new scaling approach for the mesoscale simulation of magnetic domain structures using Monte Carlo simulations. United States. doi:10.1016/j.jmmm.2017.01.064.
Radhakrishnan, B., Eisenbach, M., and Burress, Timothy A.. Tue . "A new scaling approach for the mesoscale simulation of magnetic domain structures using Monte Carlo simulations". United States. doi:10.1016/j.jmmm.2017.01.064.
@article{osti_1376339,
title = {A new scaling approach for the mesoscale simulation of magnetic domain structures using Monte Carlo simulations},
author = {Radhakrishnan, B. and Eisenbach, M. and Burress, Timothy A.},
abstractNote = {A new scaling approach has been proposed for the spin exchange and the dipole–dipole interaction energy as a function of the system size. The computed scaling laws are used in atomistic Monte Carlo simulations of magnetic moment evolution to predict the transition from single domain to a vortex structure as the system size increases. The width of a 180° – domain wall extracted from the simulated structures is in close agreement with experimentally values for an F–Si alloy. In conclusion, the transition size from a single domain to a vortex structure is also in close agreement with theoretically predicted and experimentally measured values for Fe.},
doi = {10.1016/j.jmmm.2017.01.064},
journal = {Journal of Magnetism and Magnetic Materials},
number = C,
volume = 432,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2017},
month = {Tue Jan 24 00:00:00 EST 2017}
}