Micromagnetic studies of time-dependent coercivity
Micromagnetic studies of time-dependent coercivity
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DOI:
10.1109/intmag.2017.8007903
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
J. Miao;D. Wei;C. Liu
中科院分区:
文献类型:
--
作者:
J. Miao;D. Wei;C. Liu
Sharrock [1][2] derived a law about the time-dependent coercivity for hard magnetic materials Hc(t)=H0{1−[kBT/KV×ln(At/0.693)]1/2}(1) Conventional micromagnetics using the Landau-Lifshitz (LL) equations, with a thermal fluctuation field and temperature-dependent parameters included, can take the thermal activation into account; however, the energy minimum cannot be achieved.