Patent ID: 8072714

Claim:
A tunneling magnetoresistance device comprising: a pinned layer made of ferromagnetic material having a fixed magnetization direction; a barrier layer disposed over the pinned layer and having a thickness allowing electrons to transmit therethrough by a tunneling phenomenon; a first free layer disposed over the barrier layer and made of amorphous or fine crystalline soft magnetic material which changes a magnetization direction under an external magnetic field; a second free layer disposed over the first free layer and made of crystalline soft magnetic material which changes a magnetization direction under an external magnetic field and being exchange-coupled to the first free layer; and a crystallization suppressing layer disposed between the first and second free layers, the crystallization suppressing layer preventing the first free layer from being crystallized by inheriting a crystal structure of the second free layer, wherein the second free layer is polycrystalline having a face centered cubic structure, and has non-orientation or has a (111) plane oriented preferentially in parallel to a substrate surface.