公开(公告)号：US20180233659A1

公开(公告)日：2018-08-16

申请号：US15897121

申请日：2018-02-14

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Rie MATSUMOTO ,  Hiroko ARAI ,  Shinji YUASA ,  Hiroshi IMAMURA

IPC: H01L43/08 ,  H01L43/10 ,  H01L27/22 ,  G01R33/09

CPC classification number: H01L43/08 ,  G01R33/093 ,  H01L27/222 ,  H01L43/10

Abstract: Some embodiments are directed to a magnetoresistive device, including a free layer having an easy magnetization direction in a perpendicular direction or in an in-plane direction; a fixed layer having the easy magnetization direction which is in the perpendicular direction when the easy magnetization direction of the free layer is in the perpendicular direction or in the in-plane direction when the easy magnetization direction of the free layer is in the in-plane direction; and a non-magnetic layer disposed between the free layer and the fixed layer.

公开(公告)号：US20180151214A1

公开(公告)日：2018-05-31

申请号：US15576271

申请日：2016-05-19

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Rie MATSUMOTO ,  Hiroko ARAI ,  Shinji YUASA ,  Hiroshi IMAMURA

IPC: G11C11/16 ,  H01L43/08 ,  H01L43/02 ,  H01L43/10 ,  H01F10/32

CPC classification number: G11C11/1675 ,  G11C11/161 ,  H01F10/3236 ,  H01F10/325 ,  H01F10/3254 ,  H01F10/3286 ,  H01F10/329 ,  H01L43/02 ,  H01L43/08 ,  H01L43/10

Abstract: A non-collinear magnetoresistive device, includes: a free layer; a fixed layer; and a non-magnetic layer disposed between the free layer and the fixed layer, wherein the fixed layer has an easy magnetization direction in an in-plane direction or in a perpendicular direction, the free layer satisfies at room temperature expressions (1) and (2) below: ERT≥1.66×10−19 J  (1) V≤5×104 nm3  (2) where ERT=(Ku1,eff+Ku2+Ku1,eff2/4Ku2)×V, Ku1,eff: an effective first-order anisotropy constant, Ku2: a second-order anisotropy constant, and V: a volume, and wherein the free layer is in a cone magnetization state.