Ratchet propagation of a magnetic domain wall in a single magnetic wire with quantum interference
Mesoscale and Nanoscale Physics
2015-05-19 v1 Materials Science
Quantum Physics
Abstract
Quantum interference incorporating spatially asymmetric potential profiles is realized experimentally to manipulate a magnetic domain wall (DW) into a single multilayered wire whose spacer has a thickness gradient for generating asymmetrical interlayer exchange coupling from side to side. We demonstrate experimentally how to guide a DW in a micron-scale ferromagnetic wire without reflection symmetry of the interlayer exchange coupling. This is the ratcheting of a DW in a form of ratchet potential using quantum interference. The experimental results can be described well by numerical simulations considering spatially asymmetric potential profiles due to quantum interference.
Keywords
Cite
@article{arxiv.1007.2166,
title = {Ratchet propagation of a magnetic domain wall in a single magnetic wire with quantum interference},
author = {Akinobu Yamaguchi and Tomoaki Kishimoto and Hideki Miyajima},
journal= {arXiv preprint arXiv:1007.2166},
year = {2015}
}