Patent ID: 7187524

Claim:
A method for fabricating a magnetic head comprising: fabricating a plurality of thin films to create a read sensor, said read sensor including seed, pinned, pinning, spacer, ferromagnetic sense and cap layers having a central portion and outwardly disposed end portions; milling said plurality of thin films such that a central sensor region is protected from milling and unprotected outer regions are milled down to said pining layer; fabricating a longitudinal bias (LB) stack upon said pinning layer at said outer regions such that said LB stack is disposed proximate said end portions of said sense layer; wherein said LB stack is fabricated including the steps of depositing an amorphous film upon said pinning layer, and depositing a nonmagnetic film upon said amorphous film, and depositing a hard magnetic film upon said nonmagnetic film, wherein said nonmagnetic film has a bcc crystalline structure; and wherein said amorphous film is comprised of a material selected from the group consisting of WN x , where x is approximately 36 to 46 at. %, W—Re where Re is approximately 50 to 75 at. %, and WO Y where Y is approximately 10 to 50 at. %.