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公开(公告)号：CA2060561A1
公开(公告)日：1992-08-09
申请号：CA2060561
申请日：1992-02-03
Applicant: IBM
Inventor： PARKIN STUART S P , ROCHE KEVIN P
Abstract: Described is a magnetoresistive (MR) sensor comprising a multilayered structure formed on a substrate includes alternating layers of a ferromagnetic material (12) and copper (14). The ferromagnetic material and the copper form bilayers which exhibit the property that the magnetoresistance of the multilayered structure oscillates as a function of thickness of the non-magnetic material. A current flow is produced through the MR sensor, and the variations in the resistivity of the MR sensor are sensed as a function of the magnetic field being sensed. Also described is a sensor having a quadlayer structure which comprises alternating layers of a first and second ferromagnetic material and a non-magnetic metallic material.
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公开(公告)号：BR9200322A
公开(公告)日：1992-10-13
申请号：BR9200322
申请日：1992-01-31
Applicant: IBM
Inventor： PARKIN STUART S PAPWORTH , ROCHE KEVIN P
Abstract: Described is a magnetoresistive (MR) sensor comprising a multilayered structure formed on a substrate includes alternating layers of a ferromagnetic material (12) and copper (14). The ferromagnetic material and the copper form bilayers which exhibit the property that the magnetoresistance of the multilayered structure oscillates as a function of thickness of the non-magnetic material. A current flow is produced through the MR sensor, and the variations in the resistivity of the MR sensor are sensed as a function of the magnetic field being sensed. Also described is a sensor having a quadlayer structure which comprises alternating layers of a first and second ferromagnetic material and a non-magnetic metallic material.
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