Magnetism control of thin CoFeB layers by ferroelectric polarization
Nonvolatile and reversible control of perpendicular magnetic properties of thin Co _0.2 Fe _0.6 B _0.2 layers formed on a MgO layer was demonstrated by ferroelectric switching of the stacked Al _0.88 Sc _0.12 N and Ta _2 O _5 layers. A change in the coercivity ( H _c ) of the 1.3-nm-thick Co _0.2 Fe...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | Applied Physics Express |
| Subjects: | |
| Online Access: | https://doi.org/10.35848/1882-0786/adbf65 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850094173912301568 |
|---|---|
| author | Yan Wu Kazushi Onimura Hiroyuki Kobayashi Satoshi Okamoto Kuniyuki Kakushima |
| author_facet | Yan Wu Kazushi Onimura Hiroyuki Kobayashi Satoshi Okamoto Kuniyuki Kakushima |
| author_sort | Yan Wu |
| collection | DOAJ |
| description | Nonvolatile and reversible control of perpendicular magnetic properties of thin Co _0.2 Fe _0.6 B _0.2 layers formed on a MgO layer was demonstrated by ferroelectric switching of the stacked Al _0.88 Sc _0.12 N and Ta _2 O _5 layers. A change in the coercivity ( H _c ) of the 1.3-nm-thick Co _0.2 Fe _0.6 B _0.2 layer from 30 to 141 Oe was confirmed by depleting electrons at the interface, modifying the magnetic domain wall energy. Saturation magnetization showed a slight decrease toward depletion condition, presumably presenting a dead layer at the interface. The ferroelectric polarization-induced control of magnetism has high potential for magnetic memory applications. |
| format | Article |
| id | doaj-art-6efe5db8f4d04cd79a1feb7677db19e4 |
| institution | DOAJ |
| issn | 1882-0786 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Applied Physics Express |
| spelling | doaj-art-6efe5db8f4d04cd79a1feb7677db19e42025-08-20T02:41:43ZengIOP PublishingApplied Physics Express1882-07862025-01-0118303300310.35848/1882-0786/adbf65Magnetism control of thin CoFeB layers by ferroelectric polarizationYan Wu0Kazushi Onimura1Hiroyuki Kobayashi2Satoshi Okamoto3Kuniyuki Kakushima4School of Engineering, Institute of Science Tokyo , Kanagawa 226-8501, Japan; Sumitomo Chemical Next-Generation Eco-Friendly Devices Collaborative Research Cluster, Institute of Science Tokyo , Kanagawa, 226-8501, JapanSchool of Engineering, Institute of Science Tokyo , Kanagawa 226-8501, JapanSumitomo Chemical Next-Generation Eco-Friendly Devices Collaborative Research Cluster, Institute of Science Tokyo , Kanagawa, 226-8501, JapanSumitomo Chemical Next-Generation Eco-Friendly Devices Collaborative Research Cluster, Institute of Science Tokyo , Kanagawa, 226-8501, Japan; Materials and Structures Laboratory, Institute of Science Tokyo , Kanagawa 226-8501, JapanSchool of Engineering, Institute of Science Tokyo , Kanagawa 226-8501, Japan; Sumitomo Chemical Next-Generation Eco-Friendly Devices Collaborative Research Cluster, Institute of Science Tokyo , Kanagawa, 226-8501, JapanNonvolatile and reversible control of perpendicular magnetic properties of thin Co _0.2 Fe _0.6 B _0.2 layers formed on a MgO layer was demonstrated by ferroelectric switching of the stacked Al _0.88 Sc _0.12 N and Ta _2 O _5 layers. A change in the coercivity ( H _c ) of the 1.3-nm-thick Co _0.2 Fe _0.6 B _0.2 layer from 30 to 141 Oe was confirmed by depleting electrons at the interface, modifying the magnetic domain wall energy. Saturation magnetization showed a slight decrease toward depletion condition, presumably presenting a dead layer at the interface. The ferroelectric polarization-induced control of magnetism has high potential for magnetic memory applications.https://doi.org/10.35848/1882-0786/adbf65magnetism controlperpendicular magnetic anisotropyferroelectric polarizationcoercivityMOKE |
| spellingShingle | Yan Wu Kazushi Onimura Hiroyuki Kobayashi Satoshi Okamoto Kuniyuki Kakushima Magnetism control of thin CoFeB layers by ferroelectric polarization Applied Physics Express magnetism control perpendicular magnetic anisotropy ferroelectric polarization coercivity MOKE |
| title | Magnetism control of thin CoFeB layers by ferroelectric polarization |
| title_full | Magnetism control of thin CoFeB layers by ferroelectric polarization |
| title_fullStr | Magnetism control of thin CoFeB layers by ferroelectric polarization |
| title_full_unstemmed | Magnetism control of thin CoFeB layers by ferroelectric polarization |
| title_short | Magnetism control of thin CoFeB layers by ferroelectric polarization |
| title_sort | magnetism control of thin cofeb layers by ferroelectric polarization |
| topic | magnetism control perpendicular magnetic anisotropy ferroelectric polarization coercivity MOKE |
| url | https://doi.org/10.35848/1882-0786/adbf65 |
| work_keys_str_mv | AT yanwu magnetismcontrolofthincofeblayersbyferroelectricpolarization AT kazushionimura magnetismcontrolofthincofeblayersbyferroelectricpolarization AT hiroyukikobayashi magnetismcontrolofthincofeblayersbyferroelectricpolarization AT satoshiokamoto magnetismcontrolofthincofeblayersbyferroelectricpolarization AT kuniyukikakushima magnetismcontrolofthincofeblayersbyferroelectricpolarization |