| 摘要 |
A magnetic head is provided, which includes a magnetoresistive effect element having a pinned layer and a free layer and can sufficiently suppress noise induced by spin transfer even for high current density. The magnetic head includes the magnetoresistive effect element which comprises: a first pinned layer; a first spacer layer made of an insulating material; a free layer having a magnetization direction changeable in accordance with an external magnetic field; a second spacer layer that is conductive; and a second pinned layer, wherein those layers are stacked in that order. A magnetization direction of the first pinned layer is substantially fixed in a direction perpendicular to a stacked direction, and a magnetization direction of the second pinned layer is fixed to be opposite to the magnetization direction of the first pinned layer.
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