Current-perpendicular-to-the-plane structure magnetoresistive element having the free and/or pinned layers being made of a granular film which includes an electrically conductive magnetic material and a dielectric material
First Claim
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1. A current-perpendicular-to-the-plane structure magnetoresistive element comprising:
- a free magnetic layer;
a pinned magnetic layer; and
an electrically-conductive non-magnetic intermediate layer interposed between the free and pinned magnetic layers, whereinat least one of the free and pinned magnetic layers is made of a granular film including an electrically-conductive magnetic material and a dielectric material.
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Abstract
A current-perpendicular-to-the-plane (CPP) structure magnetoresistive (MR) element includes a pinned magnetic layer made of a granular film. The granular film contains electrically-conductive magnetic crystal grains and an dielectric material. The dielectric material serves to thin the path of the sensing electric current in the pinned magnetic layer. Moreover, the sensing electric current concentrates at the magnetic crystal grains. A larger variation can be obtained in the voltage of the sensing electric current. The output of the CPP structure MR element can be enhanced.
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Citations
4 Claims
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1. A current-perpendicular-to-the-plane structure magnetoresistive element comprising:
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a free magnetic layer; a pinned magnetic layer; and an electrically-conductive non-magnetic intermediate layer interposed between the free and pinned magnetic layers, wherein at least one of the free and pinned magnetic layers is made of a granular film including an electrically-conductive magnetic material and a dielectric material. - View Dependent Claims (2, 3, 4)
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Specification