Magnetic anisotropy of grain boundaries in nanocrystalline Ni
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- 作者：Q. Bian ; M. Niewczas ; niewczas@mcmaster.ca" class="auth_mail" title="E-mail the corresponding author
- 关键词：Grain boundary magnetic anisotropy ; Uniaxial anisotropy ; Cubic anisotropy ; Nanocrystalline materials ; Landau&ndash ; Lifshitz&ndash ; Gilbert theory
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：421
- 期：Complete
- 页码：108-112
- 全文大小：541 K
文摘
<dl class="listitem" id="list_li0005"><dt class="label">•dt><dd>
d="p0005">Temperature-dependent magnetization of nanocrystalline Ni has been simulated with the stochastic Landau–Lifshitz–Gilbert theory.
dd><dt class="label">•dt><dd>d="p0010">First order and second order surface anisotropy energy due to the grain boundaries has been included in the model.
dd><dt class="label">•dt><dd>d="p0015">First-order grain boundary anisotropy constant dominates at low temperatures and it decreases with increasing temperature.
dd><dt class="label">•dt><dd>d="p0020">Second-order grain boundary anisotropy constant is negligibly small at low temperatures and it increases with increasing temperature.
dd>dl>