Direct Observation of Magnetization Reversal by Electric Field at Room Temperature in Co-Substituted Bismuth Ferrite Thin Film

Keisuke Shimizu, Ryo Kawabe, Hajime Hojo, Haruki Shimizu, Hajime Yamamoto, Marin Katsumata, Kei Shigematsu, Ko Mibu, Yu Kumagai, Fumiyasu Oba, Masaki Azuma

Research output: Contribution to journalArticle

Abstract

Using the electric field to manipulate the magnetization of materials is a potential way of making low-power-consumption nonvolatile magnetic memory devices. Despite concentrated effort in the last 15 years on magnetic multilayers and magnetoelectric multiferroic thin films, there has been no report on the reversal of out-of-plane magnetization by an electric field at room temperature without the aid of an electric current. Here, we report direct observation of out-of-plane magnetization reversal at room temperature by magnetic force microscopy after electric polarization switching of cobalt-substituted bismuth ferrite thin film grown on (110) o -oriented GdScO 3 substrate. A striped pattern of ferroelectric and weakly ferromagnetic domains was preserved after reversal of the out-of-plane electric polarization.

Original languageEnglish
Pages (from-to)1767-1773
Number of pages7
JournalNano Letters
Volume19
Issue number3
DOIs
Publication statusPublished - Mar 13 2019

Fingerprint

Magnetization reversal
Bismuth
bismuth
Ferrite
ferrites
Magnetization
Magnetic multilayers
Electric fields
Polarization
Magnetic force microscopy
Thin films
magnetization
electric fields
Electric currents
room temperature
thin films
Cobalt
Ferroelectric materials
magnetic storage
Electric power utilization

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Direct Observation of Magnetization Reversal by Electric Field at Room Temperature in Co-Substituted Bismuth Ferrite Thin Film. / Shimizu, Keisuke; Kawabe, Ryo; Hojo, Hajime; Shimizu, Haruki; Yamamoto, Hajime; Katsumata, Marin; Shigematsu, Kei; Mibu, Ko; Kumagai, Yu; Oba, Fumiyasu; Azuma, Masaki.

In: Nano Letters, Vol. 19, No. 3, 13.03.2019, p. 1767-1773.

Research output: Contribution to journalArticle

Shimizu, K, Kawabe, R, Hojo, H, Shimizu, H, Yamamoto, H, Katsumata, M, Shigematsu, K, Mibu, K, Kumagai, Y, Oba, F & Azuma, M 2019, 'Direct Observation of Magnetization Reversal by Electric Field at Room Temperature in Co-Substituted Bismuth Ferrite Thin Film' Nano Letters, vol. 19, no. 3, pp. 1767-1773. https://doi.org/10.1021/acs.nanolett.8b04765
Shimizu, Keisuke ; Kawabe, Ryo ; Hojo, Hajime ; Shimizu, Haruki ; Yamamoto, Hajime ; Katsumata, Marin ; Shigematsu, Kei ; Mibu, Ko ; Kumagai, Yu ; Oba, Fumiyasu ; Azuma, Masaki. / Direct Observation of Magnetization Reversal by Electric Field at Room Temperature in Co-Substituted Bismuth Ferrite Thin Film. In: Nano Letters. 2019 ; Vol. 19, No. 3. pp. 1767-1773.
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