First-order reversal curve (FORC) diagrams of nanomagnets with cubic magnetocrystalline anisotropy: A numerical approach
First-order reversal curve (FORC) diagrams of nanomagnets with cubic magnetocrystalline anisotropy: A numerical approach
复制标题
具有立方磁晶各向异性的纳米磁体的一阶反转曲线（FORC）图：数值方法
DOI：
10.1016/j.jmmm.2018.09.086
复制
发表时间：
2019
影响因子：
2.7
通讯作者：
Valdez-Grijalva M
中科院分区：
文献类型：
--
作者：
Valdez-Grijalva M
一阶反转曲线（FORC）图越来越多地被用作材料的磁畴状态指纹。研究了具有单轴磁晶各向异性（MCA）的单畴（SD）粒子的非相互作用色散的FORC图。然而，有很大一类材料具有立方MCA，对于非相互作用的SD粒子分散体的FORC图性质了解较少。采用相干旋转模型研究了具有正、负MCA常数的SD粒子非相互作用系综的FORC图性质。确定了图案形成机制，并将其与单个粒子所经历的不可逆事件联系起来。我们的结果支持FORC图用于识别具有立方MCA的非相互作用到弱相互作用的SD粒子的效用。
First-order reversal curve (FORC) diagrams are increasingly used as a material’s magnetic domain state fingerprint. FORC diagrams of noninteracting dispersions of single-domain (SD) particles with uniaxial magnetocrystalline anisotropy (MCA) are well studied. However, a large class of materials possess a cubic MCA, for which the FORC diagram properties of noninteracting SD particle dispersions are less understood. A coherent rotation model was implemented to study the FORC diagram properties of noninteracting ensembles of SD particles with positive and negative MCA constants. The pattern formation mechanism is identified and related to the irreversible events the individual particles undergo. Our results support the utility of FORC diagrams for the identification of noninteracting to weakly-interacting SD particles with cubic MCA.
影响因子：
64.8
作者：
J. Clegg
通讯作者：
J. Clegg
影响因子：
3.9
作者：
Muxworthy, AR;King, JG;Heslop, D
通讯作者：
Heslop, D