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EVALUATION METHOD OF MAGNETIC HEAD AND EVALUATION DEVICE OF MAGNETIC HEAD
EVALUATION METHOD OF MAGNETIC HEAD AND EVALUATION DEVICE OF MAGNETIC HEAD
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机译:磁头评价方法及磁头评价装置
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摘要
According to one embodiment, an evaluation method of a magnetic head is disclosed. The method can include acquiring an electrical signal obtained from a magnetic element when supplying a first alternating current to a coil of a magnetic head and supplying a second current to the magnetic element. The magnetic head includes a first magnetic pole, a second magnetic pole, and a coil. The magnetic element is provided between the first magnetic pole and the second magnetic pole, and includes a first magnetic layer. The method can include detecting a time required for a change of an electrical resistance of the magnetic element based on a time when a polarity of the first alternating current is reversed based on the electrical signal.
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