Experimental measurements of multiple stable trapped domain wall states induced in nanofabricated elements

TL;DR

This paper investigates the existence of multiple stable trapped domain wall states in nanofabricated elements using experimental measurements and simulations, revealing complex magnetic configurations stabilized by structural features.

Contribution

It provides experimental evidence and numerical validation for multiple stable domain wall states induced by nanostructure notches.

Findings

Detection of complex magnetic features consistent with multiple stable states

Experimental validation of numerical predictions

Identification of notch-induced magnetic configurations

Abstract

The presence of a domain wall trapped by a sub-micron notch is probed in two ways: through electronic transport measurements and by Magnetic Force Microscopy (MFM). We observe complex magnetic features which are consistent with numerical simulations predicting the existence of multiple magnetic configurations stabilized by the notch structure.