Magnetoresistance effect element and magnetoresistance effect sensor
First Claim
Patent Images
1. A magnetoresistance effect element comprising:
- a multilayer obtained by stacking magnetic and nonmagnetic layers to exhibit a magnetoresistance effect; and
a reversal assist layers, formed in contact with said multilayer, to assist reversal of a magnetic moment of said magnetic layer.
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Abstract
A magnetoresistance effect element includes a multilayer obtained by stacking magnetic and nonmagnetic layers to exhibit a magnetoresistance effect, and an reversal assist layer formed on the multilayer to assist reversal of a magnetic moment of the magnetic layer.
104 Citations
21 Claims
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1. A magnetoresistance effect element comprising:
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a multilayer obtained by stacking magnetic and nonmagnetic layers to exhibit a magnetoresistance effect; and a reversal assist layers, formed in contact with said multilayer, to assist reversal of a magnetic moment of said magnetic layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A magnetoresistance effect element comprising:
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a first multilayer obtained by stacking magnetic and nonmagnetic layers to exhibit a magnetoresistance effect; and a second multilayer obtained by stacking magnetic and nonmagnetic layers to exhibit a saturation field larger than that of said first multilayer, wherein said second multilayer is formed on at least an end portion of said first multilayer to apply a bias magnetic field to said first multilayer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A magnetoresistance effect sensor comprising:
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a substrate; a magnetoresistance effect layer having a magnetoresistance effect; a bias applying layer which is obtained by stacking magnetic and nonmagnetic layers and in which two magnetic layers adjacent to each other with one of said nonmagnetic layers interposed therebetween are antiferromagnetically coupled to apply a bias to said magnetoresistance effect layer; and a conductive layer formed on said magnetoresistance effect layer or said bias applying layer, wherein said sensor detects a magnetic field from a change in electric resistance of said magnetoresistance effect layer. - View Dependent Claims (21)
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Specification