Electric-field control of magnetic domain wall motion and local magnetization reversal

Thumbnail Image

Files

srep00258.pdf (603.08 KB)

Access rights

openAccess
CC BY-NC-SA
publishedVersion

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.

Authors

Date

2012

Department

Department of Applied Physics

Major/Subject

Mcode

Degree programme

Language

en

Pages

6

Series

Scientific Reports, Volume 2, pp. 1-6

Abstract

Spintronic devices currently rely on magnetic switching or controlled motion of domain walls by an external magnetic field or spin-polarized current. Achieving the same degree of magnetic controllability using an electric field has potential advantages including enhanced functionality and low power consumption. Here we report on an approach to electrically control local magnetic properties, including the writing and erasure of regular ferromagnetic domain patterns and the motion of magnetic domain walls, in CoFe-BaTiO3 heterostructures. Our method is based on recurrent strain transfer from ferroelastic domains in ferroelectric media to continuous magnetostrictive films with negligible magnetocrystalline anisotropy. Optical polarization microscopy of both ferromagnetic and ferroelectric domain structures reveals that domain correlations and strong inter-ferroic domain wall pinning persist in an applied electric field. This leads to an unprecedented electric controllability over the ferromagnetic microstructure, an accomplishment that produces giant magnetoelectric coupling effects and opens the way to electric-field driven spintronics.

Description

Keywords

domain dynamics, magnetism, multiferroics, spintronics

Other note

DOI

10.1038/srep00258

Citation

Lahtinen, T H E, Franke, K J A & van Dijken, S 2012, 'Electric-field control of magnetic domain wall motion and local magnetization reversal', Scientific Reports, vol. 2, 258, pp. 1-6. https://doi.org/10.1038/srep00258

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202510087641

Collections

[article-cris] Perustieteiden korkeakoulu / SCI