| 摘要 |
PROBLEM TO BE SOLVED: To provide a tunnel magnetoresistive element having a low magnetic relaxation constant in a minute size. SOLUTION: A magnetoresistive element containing a laminated structure comprising a ferromagnetic fixed layer, a barrier layer, a ferromagnetic free layer and a non-magnetic layer brought into contact with another interface of the ferromagnetic free layer is used as the tunnel magnetoresistive element, and the non-magnetic layer consists of MgO. The ferromagnetic free layer comprises a non-magnetic conductive layer 12 and ferromagnetic layers 11 and 13 as two layers, coupled antiparallel magnetically via the non-magnetic conductive layer 12. COPYRIGHT: (C)2008,JPO&INPIT
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