Soft magnetic film and thin film magnetic head

A soft magnetic thin film, thin film magnetic head technology, applied in the direction of the magnetic head, magnetic film, magnetic recording head using thin film, etc., to achieve the effect of high saturation magnetic flux density, excellent high frequency characteristics, excellent soft magnetic characteristics
CN1835083AInactive Publication Date: 2006-09-20FUJITSU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJITSU LTD
Publication Date
2006-09-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The soft magnetic film has superior soft magnetic characteristics and is suitable for a thin film magnetic head. The soft magnetic film of the present invention comprises: a magnetic base layer including a ferromagnetic element; and a ferromagnetic layer being piled on the magnetic base layer. The soft magnetic film has uniaxial magnetic anisotropy. The magnetic base layer includes at least one element selected from Fe, Ni and Co as the ferromagnetic element.
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Description

technical field

[0001] The invention relates to a soft magnetic thin film and a thin film magnetic head. Background technique

[0002] In a disk drive unit, a thin-film magnetic head is used to write data to and reproduce data from a recording medium. A thin-film magnetic head has an upper magnetic pole and a lower magnetic pole, which are magnetic layers, and a spacer layer, which is a non-magnetic layer located between the two magnetic poles. A magnetic field is generated between the upper and lower magnetic poles to write data into the media.

[0003] The thin-film magnetic head can increase the saturation magnetic flux density of the magnetic poles to increase the recording density. Therefore, a magnetic thin film (soft magnetic thin film) having a high saturation magnetic flux density and soft magnetic properties is required.

[0004] The applicant of the present invention invented a thin film magnetic head having a soft magnetic thin film (see Japanese Patent Public...

Claims

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