MAGNETIC DETECTOR

摘要

[PROBLEMS] To provide a magnetic detector which can especially widen the detection range of a magnet located on the X-Y plane as compared with prior art. [MEANS FOR SOLVING PROBLEMS] A magnetic sensor (12), a first magnetic body (13) and a second magnetic body (14) are mounted on a substrate (11). A magnetoresistive effect element incorporated in the magnetic sensor (12) has a structure laminating a fixed magnetic layer, a free magnetic layer, and a nonmagnetic layer interposed between the fixed magnetic layer and the free magnetic layer at least in the height direction (Z direction). The magnetization direction of the fixed magnetic layer is fixed to one direction of the X direction intersecting the Z direction perpendicularly, and the first magnetic body (13) and the second magnetic body (14) are arranged on the opposite sides of the magnetoresistive effect element in the X direction while spaced apart from each other. The surfaces (13a1, 14a1) of the first magnetic body (13) and the second magnetic body (14) facing each other in the X direction are arranged while being shifted from each other in the Y and Z directions.