Magnetic Tetrastability in a Spin Chain
Mesoscale and Nanoscale Physics
2016-09-07 v1 Statistical Mechanics
Abstract
Bistability in magnetism has been extensively used, in particular to store information. Here we propose an alternative route by using tetrastable magnetic domains. Using numerical and analytical calculations we show that a spin chain with a canting angle of {\pi}/4 possesses four energy-equivalent states. We discuss the static properties of such chain such as the profile and the energy of the domain walls as they govern the relaxation of the magnetization. The realisation of such spin chain could enable the encoding of the information on four bits which is a potential alternative toward the increase of storage density.
Keywords
Cite
@article{arxiv.1604.04311,
title = {Magnetic Tetrastability in a Spin Chain},
author = {Vivien Pianet and Matias Urdampilleta and Thierry Colin and Rodolphe Clérac and Claude Coulon},
journal= {arXiv preprint arXiv:1604.04311},
year = {2016}
}
Comments
4 pages, 5 figures, supplementary material available