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US 11,561,266 B2Granted
Magnetic sensor
AssigneeShowa Denko K.K.
InventorsDaizo Endo, Akira Sakawaki
Life of this patent
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Abstract
Reduction of the S/N in an output from a magnetic sensor using the magnetic impedance effect is suppressed. A magnetic sensor 1 is provided with a sensitive element 31 including: plural soft magnetic material layers 105; and a nonmagnetic amorphous metal layer 106 provided between the plural soft magnetic material layers 105, wherein the soft magnetic material layers 105 facing each other with the nonmagnetic amorphous metal layer 106 interposed therebetween are antiferromagnetically coupled to sense a magnetic field by a magnetic impedance effect.
Claims7
A magnetic sensor comprising:
- a sensitive element comprising:
- plural soft magnetic material layers;
- and
- a nonmagnetic amorphous metal layer provided between the plural soft magnetic material layers, wherein
- the soft magnetic material layers facing each other with the nonmagnetic amorphous metal layer interposed therebetween are antiferromagnetically coupled to allow the sensitive element to sense a magnetic field by a magnetic impedance effect,
- wherein the nonmagnetic amorphous metal layer is composed of amorphous metal containing Ti.
3 more elements
Dependencies are inferred from the claim text.