| 摘要 |
The present invention provides a magnetic device to be used by flowing an electric current in the direction of depth of pores comprising a porous layer on a substrate, ferromagnetic layers and a non-magnetic layer being laminated within all or a part of pores, a first ferromagnetic layer, and a second ferromagnetic layer having a smaller coercive force than the first ferromagnetic layer, the first ferromagnetic layer being laminated on the second ferromagnetic layer by being separated with the non-magnetic layer, wherein the first ferromagnetic layer contains the same elements as in the second ferromagnetic layer, the proportion of each element being different between the two ferromagnetic layers.
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