Magneto-resistive layer arrangement and gradiometer with...

Details Magneto-resistive layer arrangement and gradiometer with... Magneto-resistive layer arrangement and gradiometer with...

2006-06-20

2006-06-20

Hoang, Tu (Department: 2832)

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

C338S204000

Reexamination Certificate

active

07064649

ABSTRACT:
A magnetoresistive layer system including a layer sequence including at least two magnetic layers, a non-magnetic, electrically conductive intermediate layer being arranged between them; the electrical resistance of the layer system being changeable as a function of an external magnetic field acting on the layer system. At least one magnetically hard layer is integrated in the layer system, at least in certain areas, applying a magnetic field at least in the area of a boundary surface between the magnetic layers and the intermediate layer. The magnetoresistive layer system is suitable in particular for use in a GMR sensor element including coupled multilayers or in an AMR sensor element having a barberpole structure. In addition, the system includes a gradiometer including a plurality of such layer systems.

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