Magnetic Bubble Domain Blowing with Electric Probe

TL;DR

This paper explores a novel method for generating and stabilizing magnetic bubble domains using electric probes, inspired by recent advances in magnetic skyrmion physics, with potential applications in magnetic data storage.

Contribution

It introduces a new perspective on bubble domain generation via electric probes, linking it to skyrmion stabilization mechanisms, and provides theoretical analysis of the process.

Findings

Single bubble domains can be generated with electric pulses.

The size of the bubble can be increased by raising the electric potential.

The same mechanism can stabilize submicron skyrmion-like bubbles.

Abstract

The problem of bubble domain generation is revisited from a new perspective that was opened by recent findings in the field of physics of magnetic skyrmions. The single bubble domain can be generated under the tip electrode touching the surface of dielectric iron garnet film by positive step-like voltage pulse and its equilibrium size can be increased with further rising of electric potential. The theoretical analysis shows that the same mechanism can be used to stabilize the submicron bubbles topologically equivalent to the skyrmion.