Multilayered current-induced domain wall motion in Pt/Tb-Co/Ta/Tb-Co/Pt magnetic wire
Source abstract
Abstract
We fabricated a Pt (3 nm)/Tb0.28Co0.72 (4 nm)/Ta (4 nm)/Tb0.26Co0.74 (4 nm)/Pt (3 nm) multilayered magnetic wire and investigated current-induced domain wall motion within it. We found that the Hall resistance of the Pt/Tb-Co/Ta/Tb-Co/Pt wire has four stable levels under a magnetic field of zero. Moreover, we observed that the domain walls in both the upper and lower ferromagnetic layers are controlled by a single current source. This indicates that Pt/Tb-Co/Ta/Tb-Co/Pt wire can be used in multi-level magnetic wire memory.
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Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic Properties and Applications · Physics of Superconductivity and Magnetism
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School and Faculty of Information Science and Electrical Engineering, Kyushu University 1 , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Information Storage Materials Laboratory, Toyota Technological Institute 2 , 2-12-1 Hisakata, Tenpaku-ku, Nagoya 468-8511, Japan
Funding
Mext-Supported Program for Strategic Research Foundation at Private University · Ministry of Education, Culture, Sports, Science and Technology · Iketani Science and Technology Foundation
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