Publication number: 20250054671
Abstract: The present disclosure generally relates to spin-orbit torque (SOT) device comprising a first bismuth antimony (BiSb) layer having a (001) orientation. The SOT device comprises a first BiSb layer having a (001) orientation and a second BiSb layer having a (012) orientation. The first BiSb layer having a (001) orientation is formed by depositing an amorphous material selected from the group consisting of: B, Al, Si, SiN, Mg, Ti, Sc, V, Cr, Mn, Y, Zr, Nb, AlN, C, Ge, and combinations thereof, on a substrate, exposing the amorphous material to form an amorphous oxide surface on the amorphous material, and depositing the first BiSb layer on the amorphous oxide surface. By utilizing a first BiSb layer having a (001) orientation and a second BiSb having a (012) orientation, the signal through the SOT device is balanced and optimized to match through both the first and second BiSb layers.
Type:
Application
Filed:
October 31, 2024
Publication date:
February 13, 2025
Applicant:
Western Digital Technologies, Inc.
Inventors:
Quang LE, Brian R. YORK, Cherngye HWANG, Xiaoyong LIU, Michael A. GRIBELYUK, Xiaoyu XU, Randy G. SIMMONS, Kuok San HO, Hisashi TAKANO