US 11,990,163 B2
Multilayer structures for magnetic recording devices to facilitate targeted magnetic switching and low coercivity
Ning Shi, San Jose, CA (US); Brian R. York, San Jose, CA (US); Susumu Okamura, San Jose, CA (US); and Suping Song, Fremont, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Jun. 30, 2022, as Appl. No. 17/854,617.
Prior Publication US 2024/0005951 A1, Jan. 4, 2024
Int. Cl. G11B 5/39 (2006.01)
CPC G11B 5/3929 (2013.01) [G11B 5/3912 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A magnetic recording head, comprising:
an iron-cobalt (FeCo) layer having a crystalline structure that is a cubic lattice structure;
a first crystalline layer formed of a first material;
a second crystalline layer between the first crystalline layer and the FeCo layer, the second crystalline layer formed of a second material different from the first material, and the second crystalline layer interfacing both the FeCo layer and the first crystalline layer; and
an amorphous seed layer, wherein the first crystalline layer is between the amorphous seed layer and the second crystalline layer.