Metastable state in a shape-anisotropic single-domain nanomagnet subjected to spin-transfer-torque
Mesoscale and Nanoscale Physics
2012-10-18 v2
Abstract
We predict the existence of a new metastable magnetization state in a single-domain nanomagnet with uniaxial shape anisotropy. It emerges when a spin-polarized current, delivering a spin-transfer-torque, is injected into the nanomagnet. It can trap the magnetization vector and prevent spin-transfer-torque from switching the magnetization from one stable state along the easy axis to the other. Above a certain threshold current, the metastable state no longer appears. This has important technological consequences for spin-transfer-torque based magnetic memory and logic systems.
Keywords
Cite
@article{arxiv.1106.1215,
title = {Metastable state in a shape-anisotropic single-domain nanomagnet subjected to spin-transfer-torque},
author = {Kuntal Roy and Supriyo Bandyopadhyay and Jayasimha Atulasimha},
journal= {arXiv preprint arXiv:1106.1215},
year = {2012}
}