Brinks Hofer Gilson & Lione
Dual spin-valve magnetoresistive thin film element
A dual spin-valve magnetoresistive thin film element includes a free magnetic layer, first and second nonmagnetic electrically conductive layers residing below and above the composite free magnetic layer, respectively, first and second dual pinned magnetic layers each having first and second pinned magnetic layers, and first and second antiferromagnetic layers. In the first dual pinned magnetic layer, the first pinned magnetic layer of contacts the first antiferromagnetic layer and the second pinned magnetic layer contacts the first nonmagnetic electrically conductive layer. In the second dual pinned magnetic layer, the first pinned magnetic layer of contacts the second antiferromagnetic layer and the second pinned magnetic layer contacts the second nonmagnetic electrically conductive layer, and the magnetic moment of the first pinned magnetic layer is greater than the second pinned magnetic layer.
Alps Electric Co., Ltd.
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Masamichi Naoya
Saito Hasegawa