| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic cell in which an inversion current at the time of inversion of magnetization by current direct driving can be reduced, and a magnetic memory using it. SOLUTION: The magnetic head is provided with a first ferromagnetic layer in which magnetization is fixed to the first direction substantially, a second ferromagnetic layer in which the direction of magnetization is variable, and a first intermediate layer provided between the first ferromagnetic layer and the second ferromagnetic layer, an electron current is made to flow in the second ferromagnetic layer from a magnetic recording medium and the magnetization of the second ferromagnetic layer is made a direction in accordance with a spin polarization state of the electron current, and information recorded in the magnetic recording medium can be read by detecting variation of resistance between the first and the second ferromagnetic layers decided in accordance with relative relation of the magnetization direction of the first ferromagnetic object and the magnetization direction of the second ferromagnetic object. COPYRIGHT: (C)2007,JPO&INPIT
|
