Switching of Single Hexagonal Particles with Nonuniform Magnetic Properties
Switching of Single Hexagonal Particles with Nonuniform Magnetic Properties
复制标题
具有不均匀磁特性的单个六角形粒子的切换
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
N. Hayashi
中科院分区：
文献类型：
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作者：
Y. Uesaka;Y. Nakatani;N. Hayashi
用计算机模拟研究了具有非均匀磁性的六方粒子的开关场。当电场几乎为圆形时，具有低各向异性能量常数(Ku)区的六方粒子在三个厚度层的拐角处的切换场都比均匀粒子的切换场低。然而，当电场几乎平行于六角形平面时，非均匀六方粒子的切换场与均匀粒子的切换场相似。当电场垂直于六角平面时，中心具有低Ku区的六方粒子也比均匀粒子在较低的场中开关。表面层具有低Ku区的六方粒子的切换场与均匀粒子的切换场几乎相同。
Switching fields of hexagonal particles with nonuniform magnetic properties are investigated using computer simulation. The switching field of a hexagonal particle with a low anisotropy energy constant (K u) region at a corner of all three thickness layers is lower than that of the uniform particle when the field is applied almost perpen-dicular to the hexagonal plane. However, when the field is applied almost parallel to the hexagonal plane, the switching field of the nonuniform hexagonal particle is similar to that of the uniform particle. A hexagonal particle with a low K u region at the center also switches in a lower field than the uniform particle does when the field is applied perpendicular to the hexagonal plane. The switching field of a hexagonal particle with low K u region in the surface layer is almost the same as that of a uniform particle.