TY - JOUR
T1 - Thermally Assisted Current-Induced Domain Wall Motion in Tb/Co Magnetic Multilayered Wire with a High Domain Wall Propagation Field
AU - Kurokawa, Yuichiro
AU - Bang, Do
AU - Awano, Hiroyuki
N1 - Funding Information:
ACKNOWLEDGMENT The authors would like to thank S. Sumi for useful discussions. This work was supported in part by the MEXT-Supported Program for Strategic Research Foundation at Private University (2014–2020) and in part by MEXT KAKENHI under Grant 26630137 (2014–2016).
Publisher Copyright:
© 1965-2012 IEEE.
PY - 2017/7
Y1 - 2017/7
N2 - We investigated the current-induced domain wall (DW) motion in Tb/Co multilayered wire with various substrate temperatures (Ts). The coercivity and DW propagation field of the Tb/Co multilayered film are 10 and 8 kOe, respectively. In the Tb/Co wire, the DW velocity is 2.4 m/s for a current density of 4.5 × 1011 Am2 at room temperature. At Ts = 343 K, we also found that the DW velocity is about two times higher than that at room temperature. The enhancement of DW velocity can be attributed to thermally activated creep DW motion and/or the reduction of the depinning current density.
AB - We investigated the current-induced domain wall (DW) motion in Tb/Co multilayered wire with various substrate temperatures (Ts). The coercivity and DW propagation field of the Tb/Co multilayered film are 10 and 8 kOe, respectively. In the Tb/Co wire, the DW velocity is 2.4 m/s for a current density of 4.5 × 1011 Am2 at room temperature. At Ts = 343 K, we also found that the DW velocity is about two times higher than that at room temperature. The enhancement of DW velocity can be attributed to thermally activated creep DW motion and/or the reduction of the depinning current density.
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U2 - 10.1109/TMAG.2017.2676086
DO - 10.1109/TMAG.2017.2676086
M3 - Article
AN - SCOPUS:85028362346
SN - 0018-9464
VL - 53
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 7
M1 - 7866893
ER -