Patent ID: 11908496
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 23:
24. A magnetic recording device comprising a magnetic recording head, the magnetic recording head comprising:
a spin-orbit torque (SOT) device, comprising:
a topological insulator (TI) modulation multilayer, the TI modulation multilayer comprising:
a plurality of bismuth (Bi) or bismuth-rich bismuth antimony (BiSb) composition modulation layers comprising bismuth in an atomic percent of about 96% to about 100%; and
one or more alternating stacks, the one or more alternating stacks comprising:
a first TI lamellae layer comprising BiSb having a crystal orientation of (012) and clusters of atoms, the clusters of atoms comprising a carbide, a nitride, an oxide, or a composite ceramic material; and
a first texturing layer disposed over the first TI lamellae layer, the first texturing layer being selected from the group consisting of:

an amorphous material comprising covalently bonded carbide, oxide, or nitride, a face centered cubic (fcc) material, a tetragonal material, a body centered cubic (bcc) material, and a metallic amorphous material.