Journal
APPLIED PHYSICS EXPRESS
Volume 11, Issue 6, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/APEX.11.063001
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Funding
- JSPS KAKENHI [15H05702, 26103002, 26103004]
- Collaborative Research Program of the Institute for Chemical Research, Kyoto University
- R&D project for ICT Key Technology of MEXT from the Japan Society for the Promotion of Science (JSPS)
- Cooperative Research Project Program of the Research Institute of Electrical Communication, Tohoku University
- JSPS [P16314]
- National Research Foundation of Korea (NRF) grant - Korea Government (MSIP) [2017R1C1B2009686, NRF-2016R1A5A1008184]
- DGIST R&D Program of the Ministry of Science, ICT and Future Planning [17-BT-02]
- Priority Research Centers Program through the NRF - Ministry of Education [2009-0093818]
- Austrian Science Fund (FWF) [P16314] Funding Source: Austrian Science Fund (FWF)
- National Research Foundation of Korea [2017R1C1B2009686] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The domain-wall (DW) motion of ferrimagnets is investigated with respect to the angular-momentum-compensation temperature T-A for a wide range of magnetic fields mu H-0(z), ranging from the depinning to flow regimes. While the DW velocity v exhibits a maximum at T-A in the flow regime regardless of mu H-0(z), the temperature at which v is maximized depends on mu H-0(z) because of the temperature dependence of the depinning field mu H-0(dep), causing difficulty in determining T-A. To solve this problem, we propose a reduced coordinate mu H-0(z )- mu H-0(dep), which reveals that v is maximized at T-A even in the depinning regime. Our work suggests that mu H-0(dep) should be identified prior to determining T-A. (C) 2018 The Japan Society of Applied Physics
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