Patent ID: 9287323
Filing Date: 2016-03-15
CPC Classification: G11C,H01L

Claim Text:
1. A magnetoresistive element comprising: a recording layer having magnetic anisotropy in a direction perpendicular to a film surface and having a variable magnetization direction; a reference layer having magnetic anisotropy in a direction perpendicular to a film surface and having a first invariable magnetization direction; a tunnel barrier layer provided between the recording layer and the reference layer; a buffer layer provided on a surface of the recording layer, which is opposite to a surface of the recording layer where the tunnel barrier layer is provided, wherein at least the portion of the buffer layer interfacing to the recording layer contains a rocksalt crystal structure having the (100) plane parallel to the substrate plane and at least a portion of the buffer layer comprises a doped element having electrical conductivity enhancement and the perpendicular resistance of the buffer layer is relatively smaller than that of the tunnel barrier layer; and a base layer provided on a surface of the buffer layer, which is opposite to a surface of the buffer layer where the recording layer is provided.