| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high reproduction output regardless of a fine magnetic domain structure. SOLUTION: A magnetic reproduction element comprises a pin layer 6 wherein a magnetization direction is fixed, a free layer 10 wherein a magnetization direction is variable, an intermediate layer 8 formed between the pin layer and the free layer, a first electrode layer 2 formed on one face of the pin layer opposite to the intermediate layer formed side, and a second electrode layer 12 formed on one face of the free layer opposite to the intermediate layer formed side. By causing a sense current to flow between the first and the second electrode layers, a magnetic field is detected. The magnetization direction of the free layer before the application of the sense current is nearly anti-parallel to the magnetization direction of the pin layer. The shape of the free layer satisfies b<200 nm and b>a, where (a) is a length of one-directional anisotropy applied to the pin layer, and (b) is a length perpendicular to the direction of the one-directional anisotropy. When the sense current is applied, the magnetization direction of the free layer is set at an angleθ(45°≤θ≤135°) with respect to the magnetization direction of the pin layer. COPYRIGHT: (C)2005,JPO&NCIPI
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