Patent ID: 11881236
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A magnetic recording head, comprising:
a main pole;
a spintronic device disposed on the main pole, the spintronic device comprising:
a spin torque layer; and
a multilayer spacer layer disposed over the spin torque layer, the multilayer spacer layer comprising a Cu layer and a spin transparent texture layer; and

a trailing shield disposed on the spintronic device, the trailing shield comprising a multilayer notch disposed on the multilayer spacer layer, the multilayer notch comprising a CoFe layer and a Heusler alloy layer, wherein the Cu layer has a greater thickness than the Heusler alloy layer, the Heusler alloy layer has a greater thickness than the CoFe layer, and the CoFe layer has a greater thickness than the spin transparent texture layer.