Title:
MAGNETORESISTANCE EFFECT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2018/159138
Kind Code:
A1
Abstract:
This magnetoresistance effect element is provided with: a first ferromagnetic layer which serves as a fixed magnetization layer; a second ferromagnetic layer which serves as a free magnetization layer; and a non-magnetic spacer layer provided between the first ferromagnetic layer and the second ferromagnetic layer. The non-magnetic spacer layer is provided with: a non-magnetic metal layer comprising Ag; and at least one from among a first non-magnetic insertion layer provided to the lower surface of the non-magnetic metal layer, and a second non-magnetic insertion layer provided to the upper surface of the non-magnetic metal layer. The first non-magnetic insertion layer and the second non-magnetic insertion layer include an Ag alloy. As a result, lattice mismatch between the non-magnetic spacer layer and the first ferromagnetic layer and/or the second ferromagnetic layer is smaller than the lattice mismatch when the whole non-magnetic spacer layer comprises Ag.
Inventors:
INUBUSHI KAZUUMI (JP)
NAKADA KATSUYUKI (JP)
NAKADA KATSUYUKI (JP)
Application Number:
PCT/JP2018/001423
Publication Date:
September 07, 2018
Filing Date:
January 18, 2018
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01L43/10; H01L43/08
Domestic Patent References:
| WO2016017612A1 | 2016-02-04 |
Foreign References:
| JP2007273657A | 2007-10-18 | |||
| JP2014049145A | 2014-03-17 | |||
| JP2017027647A | 2017-02-02 | |||
| JP2007317824A | 2007-12-06 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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