| 摘要 |
PROBLEM TO BE SOLVED: To provide a MRAM which can be reproduced without applying positive and negative current pulses and to provide a method for reproducing information of this MRAM and a reproducing device using only a positive pulse or a negative pulse. SOLUTION: A magnetic resistance effective memory has a magnetic resistance film consisting of a first magnetic layer, a non-magnetic layer, and a second magnetic layer formed on a substrate, a conductor line for recoding information arranged near this magnetic resistance film or a conductor line for both recording and reproducing information, and a magnetization fixing layer near a magnetic resistance film. The magnetization of a reproduction layer being one of magnetic layers of a magnetic resistance film is oriented in one direction by this magnetization fixing layer, the center of current magnetic field-MR ratio minor loop is shifted, and reproducing information can be performed by only a positive or negative current pulse. |
