MAGNETORESISTIVE EFFECT ELEMENT, MAGNETIC HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a magnetoresistive effect element having a high output voltage or high spin injection efficiency, and a magnetic head, a magnetic head assembly, and a magnetic recording reproducing device thereof.SOLUTION: According to an embodiment, there is provided the magnetoresistive effect element including a nonmagnetic layer, a laminated structure, and a detection layer. The laminated structure is arranged on the nonmagnetic layer. The laminated structure includes a reference layer, an oscillation layer, and an intermediate layer. The reference layer is arranged on the nonmagnetic layer. A magnetization direction of the reference layer is fixed. The oscillation layer is arranged on the reference layer. A magnetization direction of the oscillation layer is in parallel with the magnetization direction of the reference layer and is variable. The intermediate layer is arranged between the reference layer and the oscillation layer. The detection layer is apart from the laminated structure and is arranged on the nonmagnetic layer.