Crystalline magnetic layer to amorphous substrate bonding
AssigneeSeagate Technology LLC
InventorsMark Anthony Gubbins, Marcus Benedict Mooney
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Abstract
Various methods for attaching a crystalline write pole onto an amorphous substrate and the resulting structures are described in detail herein. Further, the resulting structure may have a magnetic moment exceeding 2.4 Tesla. Still further, methods for depositing an epitaxial crystalline write pole on a crystalline seed or template material to ensure that the phase of the write pole is consistent with the high moment phase of the template material are also described in detail herein.
Claims22
An article of manufacture comprising:
- an amorphous substrate;
- and
- one or more epitaxial crystalline layers attached to the amorphous substrate, wherein a magnetic moment of the article of manufacture is greater than 2.4 Tesla.
A method of manufacturing comprising:
- attaching one or more epitaxial crystalline layers to an amorphous substrate, wherein the magnetic moment of the article of manufacture is greater than 2.4 Tesla.
A write pole for a recording head comprising:
- an amorphous substrate;
- a nonmagnetic crystalline template layer attached to the amorphous substrate;
- and
- a magnetic epitaxial crystalline layer deposited on the nonmagnetic crystalline template layer, wherein a magnetic moment of the write pole is greater than 2.4 Tesla.
Dependencies are inferred from the claim text.