Cargando…

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

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Lahtinen, Tuomas H. E., Franke, Kévin J. A., van Dijken, Sebastiaan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3277214/
https://www.ncbi.nlm.nih.gov/pubmed/22355770
http://dx.doi.org/10.1038/srep00258
_version_ 1782223465597632512
author Lahtinen, Tuomas H. E.
Franke, Kévin J. A.
van Dijken, Sebastiaan
author_facet Lahtinen, Tuomas H. E.
Franke, Kévin J. A.
van Dijken, Sebastiaan
author_sort Lahtinen, Tuomas H. E.
collection PubMed
description 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-BaTiO(3) 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.
format Online
Article
Text
id pubmed-3277214
institution National Center for Biotechnology Information
language English
publishDate 2012
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-32772142012-02-10 Electric-field control of magnetic domain wall motion and local magnetization reversal Lahtinen, Tuomas H. E. Franke, Kévin J. A. van Dijken, Sebastiaan Sci Rep Article 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-BaTiO(3) 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. Nature Publishing Group 2012-02-10 /pmc/articles/PMC3277214/ /pubmed/22355770 http://dx.doi.org/10.1038/srep00258 Text en Copyright © 2012, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
spellingShingle Article
Lahtinen, Tuomas H. E.
Franke, Kévin J. A.
van Dijken, Sebastiaan
Electric-field control of magnetic domain wall motion and local magnetization reversal
title Electric-field control of magnetic domain wall motion and local magnetization reversal
title_full Electric-field control of magnetic domain wall motion and local magnetization reversal
title_fullStr Electric-field control of magnetic domain wall motion and local magnetization reversal
title_full_unstemmed Electric-field control of magnetic domain wall motion and local magnetization reversal
title_short Electric-field control of magnetic domain wall motion and local magnetization reversal
title_sort electric-field control of magnetic domain wall motion and local magnetization reversal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3277214/
https://www.ncbi.nlm.nih.gov/pubmed/22355770
http://dx.doi.org/10.1038/srep00258
work_keys_str_mv AT lahtinentuomashe electricfieldcontrolofmagneticdomainwallmotionandlocalmagnetizationreversal
AT frankekevinja electricfieldcontrolofmagneticdomainwallmotionandlocalmagnetizationreversal
AT vandijkensebastiaan electricfieldcontrolofmagneticdomainwallmotionandlocalmagnetizationreversal