Electroinduced magnetic bubble domain nucleation

Daria Kulikova,Alexander Pyatakov,Timur Gareev,Elena Nikolaeva,N Perov,A Semisalova

doi:10.1051/epjconf/201818507001

Daria Kulikova, Alexander Pyatakov + Show 4 more

Open Access

https://doi.org/10.1051/epjconf/201818507001

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Abstract

The magnetoelectric properties of micromagnetic structures in iron garnet films manifest themselves in electrically induced displacement of domain walls and magnetic bubble domains nucleation. In this paper we found the condition of the electrically induced bubble domain nucleation in terms of critical electric field, magnetic bias and temperature. The collapse of magnetic bubble domain under the action of electric field pulse is also demonstrated.

Highlights

The development of information technologies requires continuous search, synthesis and research of new materials allowing new physical principles for storing and recording information
The displacement of the domain wall in an iron garnet film with a crystallographic orientation (210) under the action of an inhomogeneous electric field of the tip electrode was experimentally demonstrated in [4]. This phenomenon is explained by the presence of electrical polarization of the domain wall: the effect is of magnetoelectric nature. Later it was experimentally shown [4, 5] that the displacement of the domain wall in an inhomogeneous electric field can be increased by applying an in-plane magnetic field
We investigated the collapse of the bubble domains under the action of a negative electric field pulse by the method of high-speed photography

Summary

Introduction

The development of information technologies requires continuous search, synthesis and research of new materials allowing new physical principles for storing and recording information. The displacement of the domain wall in an iron garnet film with a crystallographic orientation (210) under the action of an inhomogeneous electric field of the tip electrode was experimentally demonstrated in [4]. This phenomenon is explained by the presence of electrical polarization of the domain wall: the effect is of magnetoelectric nature. Later it was experimentally shown [4, 5] that the displacement of the domain wall in an inhomogeneous electric field can be increased by applying an in-plane magnetic field. We present results on the dynamic collapse of bubble domains under the electric field action

Scheme of experiment

Results of the experiment

Conclusions