| abstract |
The present invention provides a magnetoresistive effect element, a magnetic head assembly, a magnetic recording / reproducing apparatus, a strain sensor, a pressure sensor, a blood pressure sensor, and a structure health monitor sensor that can handle high density. A first magnetic layer, a second magnetic layer having a composition different from the composition of the first magnetic layer, and a first magnetic layer are stacked on the substrate. A laminated body 10 having a spacer layer 13 disposed between the magnetic layer 12 and the second magnetic layer 11, a pair of first electrodes for passing a current through the laminated body 10, and the vicinity of the laminated body 10 The strain introduction that applies strain to the stacked body 10 so that the magnetization directions of the first magnetic layer 12 and the second magnetic layer 11 are biased in different directions by applying strain to the stacked body. A member, and a second electrode for applying a voltage to the strain introducing member. By applying an external magnetic field, the magnetization directions of the first magnetic layer 12 and the second magnetic layer 11 are both changed, and the external magnetic field is detected by the change in the magnetization direction. [Selection] Figure 1 |