Title:
CURRENT-PERPENDICULAR-TO-PLANE GIANT MAGNETORESISTIVE ELEMENT, PRECURSOR THEREOF, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/193871
Kind Code:
A1
Abstract:
Provided is a precursor of a current-perpendicular-to-plane giant magnetoresistive element having a laminated structure of ferromagnetic metal layer/nonmagnetic metal layer/ferromagnetic metal layer, the precursor having a nonmagnetic intermediate layer containing a non-magnetic metal and an oxide in a predetermined ratio such that the distribution thereof is nearly uniform at the atomic level. Also provided is a current-perpendicular-to-plane giant magnetoresistive element having a current confinement structure (CCP) which has: a current confinement structure region made of a conductive alloy and obtained by heat-treating a laminated structure of a ferromagnetic metal layer and a nonmagnetic intermediate layer at a predetermined temperature; and a high-resistance metal alloy region containing an oxide and surrounding the current confinement structure region.
Inventors:
NAKATANI TOMOYA (JP)
SASAKI TAISUKE (JP)
FURUBAYASHI TAKAO (JP)
HONO KAZUHIRO (JP)
SASAKI TAISUKE (JP)
FURUBAYASHI TAKAO (JP)
HONO KAZUHIRO (JP)
Application Number:
PCT/JP2019/007261
Publication Date:
October 10, 2019
Filing Date:
February 26, 2019
Export Citation:
Assignee:
NAT INST MATERIALS SCIENCE (JP)
International Classes:
H01L43/12; G11B5/39; H01L43/08; H01L43/10
Domestic Patent References:
| WO2017222038A1 | 2017-12-28 |
Foreign References:
| JP2008283194A | 2008-11-20 | |||
| JP2006073875A | 2006-03-16 | |||
| JP2017097935A | 2017-06-01 | |||
| JP2016071922A | 2016-05-09 |
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (JP)
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