Patent ID: 7672085
Filing Date: 2010-03-02
Classification: B82Y,G11B

Abstract:
1. A giant magneto-resistive effect device (CPP-GMR device) having a CPP (current perpendicular to plane) structure comprising a spacer layer, and a fixed magnetized layer and a free layer stacked one upon another with said spacer layer interleaved between them, with a sense current applied in a stacking direction, characterized in that: said free layer functions such that a magnetization direction changes depending on an external magnetic field, and said spacer layer comprises a first nonmagnetic metal layer and a second nonmagnetic metal layer, each formed of a nonmagnetic metal material, and a semiconductor oxide layer interleaved between the first nonmagnetic metal layer and the second nonmagnetic metal layer, wherein: the semiconductor oxide layer that forms a part of said spacer layer is made of indium oxide (In