Giant magnetoelectric effect in an L 2₁-ordered Co₂FeSi/Pb(Mg₁/₃Nb₂/₃)O₃-PbTiO₃ multiferroic heterostructure

Usami, T.; Fujii, S.; Yamada, S. et al.

Applied Physics Letters, 2021, 118(14), 142402

Number of Access:291（2025-05-31 10:07 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89959

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Title
Giant magnetoelectric effect in an L 2₁-ordered Co₂FeSi/Pb(Mg₁/₃Nb₂/₃)O₃-PbTiO₃ multiferroic heterostructure
Creator
NRID
1000030880273 1000030880273
ORCID
0000-0001-9478-7331 0000-0001-9478-7331
researchmap permalink
TakamasaUsami TakamasaUsami
Scopus Author ID
57189692364 57189692364
CreatorName
Usami, T.
CreatorName
Fujii, S.
CreatorName
Yamada, S.
NRID
1000070379121 1000070379121
ORCID
0000-0002-8938-4869 0000-0002-8938-4869
researchmap permalink
read0090304 read0090304
Scopus Author ID
6602197167 6602197167
CreatorName
Shiratsuchi, Y.
NRID
1000060314374 1000060314374
researchmap permalink
read0068619 read0068619
Scopus Author ID
7005234924 7005234924
CreatorName
Nakatani, R.
NRID
1000090401281 1000090401281
ORCID
0000-0002-5473-6086 0000-0002-5473-6086
researchmap permalink
read0102192 read0102192
Scopus Author ID
9244846800 9244846800
CreatorName
Hamaya, K.
Description
T. Usami, S. Fujii, S. Yamada, Y. Shiratsuchi, R. Nakatani, and K. Hamaya, Appl. Phys. Lett. 118, 142402 (2021); https://doi.org/10.1063/5.0044094
Abstract
We experimentally show a giant magnetoelectric (ME) effect at room temperature in an interfacial multiferroic heterostructure consisting of L2₁-ordered Co₂FeSi and Pb(Mg₁/₃Nb₂/₃)O₃-PbTiO₃ (PMN-PT). Molecular beam epitaxy growth at 400 °C enables us to obtain epitaxial and L2₁-ordered Co₂FeSi films on PMN-PT(001). For the epitaxial Co₂FeSi/PMN-PT heterostructure, the remanent magnetization state can be largely modulated by varying electric fields. We note that the room-temperature ME coupling coefficient (α) is estimated to be 6.0-6.3 × 10 - ⁶ s/m, comparable to the highest α value reported previously. Nonvolatile and repeatable magnetization changes in remanent states are also demonstrated. These results will pave the way for room-temperature electric-field control of the magnetization of half-metallic Heusler alloys in high-performance spintronic devices.
Publisher
American Institute of Physics
Source Title
Applied Physics Letters
Volume (Issue)
118(14)
Page
142402
Date of Issued
2021-04-06
Language
English
Handle URL
https://hdl.handle.net/11094/89959
PISSN
00036951
NCID
AA00543431
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/5.0044094
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in T. Usami, S. Fujii, S. Yamada, Y. Shiratsuchi, R. Nakatani, and K. Hamaya, Appl. Phys. Lett. 118, 142402 (2021) and may be found at https://doi.org/10.1063/5.0044094.
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学術雑誌論文 Journal Article