Author(s): Liu, QB (Liu, Qianbiao); Liu, L (Liu, Long); Xing, GZ (Xing, Guozhong); Zhu, LJ (Zhu, Lijun)

Source: NATURE COMMUNICATIONS Volume: 15 Issue: 1  Article Number: 2978  DOI: 10.1038/s41467-024-47375-5  Published Date: 2024 APR 6 

Abstract: After decades of efforts, some fundamental physics for electrical switching of magnetization is still missing. Here, we report the discovery of the long-range intralayer Dzyaloshinskii-Moriya interaction (DMI) effect, which is the chiral coupling of orthogonal magnetic domains within the same magnetic layer via the mediation of an adjacent heavy metal layer. The effective magnetic field of the long-range intralayer DMI on the perpendicular magnetization is out-of-plane and varies with the interfacial DMI constant, the applied in-plane magnetic fields, and the magnetic anisotropy distribution. Striking consequences of the effect include asymmetric current/field switching of perpendicular magnetization, hysteresis loop shift of perpendicular magnetization in the absence of in-plane direct current, and sharp in-plane magnetic field switching of perpendicular magnetization. Utilizing the intralayer DMI, we demonstrate programable, complete Boolean logic operations within a single spin-orbit torque device. These results will stimulate investigation of the long-range intralayer DMI effect in a variety of spintronic devices.

The authors find a magnetization switching mechanism and the long-range intralayer Dzyaloshinskii-Moriya interaction effect, which enables asymmetric magnetization switching and complete Boolean logic operations.

Accession Number: WOS:001201990300010

PubMed ID: 38582790

Author Identifiers:

Author Web of Science ResearcherID     ORCID Number

liu, long      0000-0002-0598-266X

Zhu, Lijun       0000-0001-8750-3847

eISSN: 2041-1723