Patent ID: 7119410
Filing Date: 2006-10-10
Classification: G11C,H01L

Abstract:
1. A magneto-resistive effect element comprising: a first magnetization-pinned layer including at least one magnetic film in which a magnetization direction is pinned; a second magnetization-pinned layer including at least one magnetic film in which a magnetization direction is pinned; a magnetic recording layer provided between the first magnetization-pinned layer and the second magnetization-pinned layer and including a single-layer magnetic film in which a magnetization direction is changeable by injecting spin-polarized electrons; a first tunnel barrier layer provided between the first magnetization-pinned layer and the magnetic recording layer; and a second tunnel barrier layer provided between the magnetic recording layer and the second magnetization-pinned layer, and having a resistance different from that of the first tunnel barrier layer; the magnetization direction of the magnetic film of the first magnetization-pinned layer on the magnetic recording layer side being substantially opposite to the magnetization direction of the magnetic film of the second magnetization-pinned layer on the magnetic recording layer side.