MAGNETISM-SENSITIVE SEMICONDUCTOR ELEMENT AND MAGNETIC HEAD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a magnetism-sensitive semiconductor element which can follow a high-speed change in magnetic field and can have a high sensitivity and also to provide a magnetic head using the element. ;SOLUTION: In the semiconductor element, an emitter electrode 2 of magnetized material is formed on the same or opposing surface of a semiconductor layer 1 to inject spin-polarized ions into the semiconductor layer 1, one or more collector electrodes 3 of the magnetized material for collecting the injected electrons are formed as opposed to the emitter electrode, and a magnetic field B is applied to the semiconductor layer 1 disposed between the emitter electrode 2 and collector electrode 3.;COPYRIGHT: (C)1997,JPO