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journal article·2026-01-27Open access

Orbital Magnetic Moment Controlled Converse Magnetoelectric Effect in bcc‐Co 3 Mn/Fe/V/PMN‐PT Multiferroic Heterostructures

Takamasa Usami, Yuichi Murakami, Ryota Watarai, Yu Shiratsuchi, Yoshihiro Gohda, Kohei Hamaya

Advanced Science
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Abstract

ABSTRACT To demonstrate multiferroic heterostructures with a giant converse magnetoelectric (CME) effect, we propose a material design strategy based on utilizing the control of orbital magnetic moments. Following this strategy, we focus on a multiferroic heterostructure composed of (211)‐oriented metastable body‐centered cubic (bcc) ferromagnetic Co 3 Mn, which is predicted to exhibit a significant change in magnetic anisotropy due to in‐plane piezostrain. By inserting an appropriate Fe/V layer, we experimentally obtain a highly (211)‐oriented bcc Co 3 Mn layer on piezoelectric Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 (011). Using this structure, we reproducibly show a giant CME effect with repeatable and nonvolatile magnetization vector switching. Our proposal is one of the important strategies toward the development of room‐temperature electric‐field‐controlled spintronic devices with ultra‐low power consumption.
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Research context

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic Properties and Synthesis of Ferrites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Spintronics Research Network Division, Institute for Open and Transdisciplinary Research Initiatives The University of Osaka Suita Osaka Japan

Center for Spintronics Research Network, Graduate School of Engineering Science The University of Osaka Toyonaka Osaka Japan

Department of Systems Innovation, Graduate School of Engineering Science The University of Osaka Toyonaka Osaka Japan

Department of Materials Science and Engineering Institute of Science Tokyo Yokohama Kanagawa Japan

Department of Materials Science and Engineering, Graduate School of Engineering The University of Osaka Suita Osaka Japan

Funding

Core Research for Evolutional Science and Technology · Nippon Sheet Glass Foundation for Materials Science and Engineering · Japan Society for the Promotion of Science

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