Multilayer structures for magnetic recording devices to facilitate targeted magnetic switching and low coercivity
US11990163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2022 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Jul 30, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3912
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the present disclosure generally relate to magnetic recording heads (such as write heads of data storage devices) that include multilayer structures to facilitate targeted switching and relatively low coercivity. In one or more embodiments, a magnetic recording head includes an iron-cobalt (FeCo) layer having a crystalline structure that is a cubic lattice structure, a first crystalline layer formed of a first material, and a second crystalline layer between the first crystalline layer and the FeCo layer. The second crystalline layer is formed of a second material different from the first material, and the second crystalline layer interfaces both the FeCo layer and the first crystalline layer. The crystalline structure of the FeCo layer has a texture of <100>.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.