Magnetic memory device using domain structure and multi-state of ferromagnetic material

摘要

Disclosed is a memory device using a multi-domain state of a semiconductor material, and more particularly to a magnetic memory device, in which a ferromagnetic layer for recording magnetic data serves as a sensing layer so as to have a simple structure, shorten a manufacturing process, and reduce the unit cost of production. The planar hall effect or magneto-resistance is used to measure multi-domain states so as to read data stored in a multi-level state.