Switching of perpendicular exchange bias in Pt/Co/Pt/α-Cr₂O₃/Pt layered structure using magneto-electric effect

Toyoki, Kentaro; Shiratsuchi, Yu; Kobane, Atsushi et al.

Journal of Applied Physics, 2015, 117(17), 17D902

Number of Access:656（2025-08-14 15:06 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89976

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Title
Switching of perpendicular exchange bias in Pt/Co/Pt/α-Cr₂O₃/Pt layered structure using magneto-electric effect
Creator
NRID
1000090780007 1000090780007
ORCID
0000-0003-2887-0326 0000-0003-2887-0326
researchmap permalink
k_toyoki k_toyoki
Scopus Author ID
55970429100 55970429100
CreatorName
Toyoki, Kentaro
NRID
1000070379121 1000070379121
ORCID
0000-0002-8938-4869 0000-0002-8938-4869
researchmap permalink
read0090304 read0090304
Scopus Author ID
6602197167 6602197167
CreatorName
Shiratsuchi, Yu
CreatorName
Kobane, Atsushi
CreatorName
Harimoto, Shotaro
CreatorName
Onoue, Satoshi
NRID
1000020506258 1000020506258
CreatorName
Nomura, Hikaru
NRID
1000060314374 1000060314374
researchmap permalink
read0068619 read0068619
Scopus Author ID
7005234924 7005234924
CreatorName
Nakatani, Ryoichi
Description
Kentaro Toyoki, Yu Shiratsuchia, Atsushi Kobane, Shotaro Harimoto, Satoshi Onoue, Hikaru Nomura, and Ryoichi Nakatani, Journal of Applied Physics 117, 17D902 (2015); https://doi.org/10.1063/1.4906322.
Abstract
Switching of the perpendicular exchange bias polarity using a magneto-electric (ME) effect of α-Cr₂O₃ was investigated. From the change in the exchange bias field with the electric field during the ME field cooling, i.e., the simultaneous application of both magnetic and electric fields during the cooling, we determined the threshold electric field to switch the perpendicular exchange bias polarity. It was found that the threshold electric field was inversely proportional to the magnetic field indicating that the EH product was constant. The high EH product was required to switch the exchange bias for the film possessing the high exchange anisotropy energy density, which suggests that the energy gain by the ME effect has to overcome the interfacial exchange coupling energy to reverse the interfacial antiferromagnetic spin.
Publisher
American Institute of Physics
Source Title
Journal of Applied Physics
Volume (Issue)
117(17)
Page
17D902
Date of Issued
2015-01-16
Language
English
Handle URL
https://hdl.handle.net/11094/89976
PISSN
00218979
eISSN
10897550
NCID
AA00693547
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/1.4906322
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 Kentaro Toyoki, Yu Shiratsuchia, Atsushi Kobane, Shotaro Harimoto, Satoshi Onoue, Hikaru Nomura, and Ryoichi Nakatani, Journal of Applied Physics 117, 17D902 (2015) and may be found at https://doi.org/10.1063/1.4906322.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article