Patent ID: 7826257

Claim:
A magnetic memory device comprising at least: a magneto-resistive storage element including a first magnet layer provided with two pinning areas on a semiconductor substrate and a second magnet layer having a fixed magnetization direction, the first magnet layer and the second magnet layer laminated through a nonmagnetic middle layer, wherein a first wiring layer is connected to one end of the first magnet layer while a second wiring layer is connected to the other end of the first magnet layer, the second magnet layer is connected to a third wiring layer, a current including a resonance frequency component determined on the basis of the magnetic domain wall potential in the vicinity of the pinning area is let flow between the first wiring and the second wiring to move the single magnetic domain wall bound in the pinning area of the first magnet layer so as to write information and a voltage is applied between the first wiring and the third wiring to detect a current flowing between the first wiring and the third wiring so as to read out information.