Magnetoresistive element, magnetic head assembly, and magnetic recording/reproducing apparatus
First Claim
Patent Images
1. A magnetoresistive element comprising:
- a lamination body and a pair of electrodes,the lamination body including;
a first magnetic layer;
a second magnetic layer; and
a spacer layer to be provided between the first magnetic layer and the second magnetic layer, the spacer layer including an oxide layer which includes at least one element selected from the group consisting of Zn, In, Sn, and Cd, and at least one element selected from the group consisting of Fe, Co, and Ni;
wherein the spacer layer further includes a first metal layer and a second metal layer; and
the oxide layer is provided between the first metal layer and the second metal layer.
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Abstract
A magnetoresistive element includes a lamination body and a pair of electrodes. The lamination body includes a first magnetic layer, a second magnetic layer, and a spacer layer. The spacer layer is provided between the first magnetic layer and the second magnetic layer and includes an oxide layer. The oxide layer includes at least one element selected from the group consisting of Zn, In, Sn, and Cd, and at least one element selected from the group consisting of Fe, Co, and Ni.
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Citations
17 Claims
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1. A magnetoresistive element comprising:
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a lamination body and a pair of electrodes, the lamination body including; a first magnetic layer; a second magnetic layer; and a spacer layer to be provided between the first magnetic layer and the second magnetic layer, the spacer layer including an oxide layer which includes at least one element selected from the group consisting of Zn, In, Sn, and Cd, and at least one element selected from the group consisting of Fe, Co, and Ni; wherein the spacer layer further includes a first metal layer and a second metal layer; and the oxide layer is provided between the first metal layer and the second metal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A magnetoresistive element comprising:
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a lamination body and a pair of electrodes, the lamination body including; a first magnetic layer; a second magnetic layer; and a spacer layer to be provided between the first magnetic layer and the second magnetic layer, the spacer layer including an oxide layer which includes at least one element selected from the group consisting of Zn, In, Sn, and Cd, and at least one element selected from the group consisting of Fe, Co, and Ni; wherein the oxide layer has a resistivity of 5×
105 μ
Ω
cm or less. - View Dependent Claims (9, 10, 11, 12)
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13. A magnetoresistive element comprising:
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a lamination body and a pair of electrodes, the lamination body including; a first magnetic layer; a second magnetic layer; and a spacer layer to be provided between the first magnetic layer and the second magnetic layer, the spacer layer including an oxide layer which includes at least one element selected from the group consisting of Zn, In, Sn, and Cd, and at least one element selected from the group consisting of Fe, Co, and Ni; wherein having an areal resistance of 5Ω
μ
m2 or less, the areal resistance being a product of an area by a resistance, the area being a cross section of the element through which a current is passed in a lamination direction thereof. - View Dependent Claims (14, 15, 16, 17)
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Specification