TY - JOUR
T1 - Current induced domain wall motion in nanostripes with perpendicular magnetic anisotropy
AU - Noh, Su Jung
AU - Tan, Reasmey P.
AU - Chun, Byong Sun
AU - Kim, Young Keun
N1 - Funding Information:
This work was supported by the degree and research center (DRC) program funded by the Korea Research Council of Fundamental Science and Technology (KRCF), and the IT R&D program of MKE/KEIT, through a project “Technology development of 30 nm level high density perpendicular STT-MRAM (2009-F-004-01)”.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2010/11
Y1 - 2010/11
N2 - We report micromagnetic modeling results of current induced domain wall (DW) motion in magnetic devices with perpendicular magnetic anisotropy by solving the LandauLifschitzGilbert equation including adiabatic and non-adiabatic terms. A nanostripe model system with dimensions of 500 nm (L)×25 nm (W)×5 nm (H) was selected for calculating the DW motion and its width, as a function of various parameters such as non-adiabatic contribution, anisotropy constant (Ku), saturation magnetization (Ms), and temperature (T). The DW velocity was found to increase when the values of Ku and T were increased and the Ms value decreased. In addition, a reduction of the domain wall width could be achieved by increasing Ku and lowering Ms values regardless of the non-adiabatic constant value.
AB - We report micromagnetic modeling results of current induced domain wall (DW) motion in magnetic devices with perpendicular magnetic anisotropy by solving the LandauLifschitzGilbert equation including adiabatic and non-adiabatic terms. A nanostripe model system with dimensions of 500 nm (L)×25 nm (W)×5 nm (H) was selected for calculating the DW motion and its width, as a function of various parameters such as non-adiabatic contribution, anisotropy constant (Ku), saturation magnetization (Ms), and temperature (T). The DW velocity was found to increase when the values of Ku and T were increased and the Ms value decreased. In addition, a reduction of the domain wall width could be achieved by increasing Ku and lowering Ms values regardless of the non-adiabatic constant value.
KW - Domain wall
KW - Micromagnetics
KW - Perpendicular magnetic anisotropy
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U2 - 10.1016/j.jmmm.2010.05.047
DO - 10.1016/j.jmmm.2010.05.047
M3 - Article
AN - SCOPUS:77955572881
VL - 322
SP - 3601
EP - 3604
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 21
ER -