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Magnetic transducer, thin film magnetic head, method of manufacturing magnetic transducer and method of manufacturing thin film magnetic head
Magnetic transducer, thin film magnetic head, method of manufacturing magnetic transducer and method of manufacturing thin film magnetic head
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机译:磁换能器,薄膜磁头,制造磁换能器的方法以及制造薄膜磁头的方法
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摘要
Provided are a magnetic transducer and a thin film magnetic head having good thermal stability and capable of obtaining a high exchange coupling magnetic field, a method of manufacturing a magnetic transducer and a method of a manufacturing a thin film magnetic head. An MR element has a stack having a stacked structure comprising an underlayer, a crystal-growth inhibitor layer, a first soft magnetic layer, a second soft magnetic layer, a nonmagnetic layer, a ferromagnetic layer, an antiferromagnetic layer and a cap layer, which are stacked in sequence. The ferromagnetic layer has an inner ferromagnetic layer, a coupling layer and an outer ferromagnetic layer, which are stacked in this order on the nonmagnetic layer. The crystal-growth inhibitor layer inhibits crystal growth of the layers formed on the crystal-growth inhibitor layer, thereby limiting an average in-surface particle diameter of the inner ferromagnetic layer to within the range of from 3 nm to 8 nm inclusive, so that an interface between the coupling layer and the inner ferromagnetic layer becomes flattened.
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