| 摘要 |
The present invention provides an appropriately produced magnetic material sensor having a small size. The magnetic material sensor of this invention includes: a magnetoresistive effect film, formed using magnetic films; a current source, for supplying to the magnetoresistive effect film a current having a magnitude and a direction that can change the magnetization directions of the magnetic films; and a detector, for detecting the resistance of the magnetoresistive effect film.
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