...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >MICROMAGNETIC MODELLING OF MULTILAYER MEDIA
【24h】

MICROMAGNETIC MODELLING OF MULTILAYER MEDIA

机译：多层介质的微观建模

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A micromagnetic model for the calculation of magnetization processes in magnetic multilayer systems has been developed using a finite element method. Shell elements which account for the multilayer structure and a magnetic vector potential to treat long-range dipolar interactions are the essential features of the algorithm. Micromagnetic calculations of hysteresis properties and domain structures in Co/Pt multilayer systems show a qualitative agreement with magnetic images obtained from field emission Lorentz microscopy. The nucleation field of Co/Pt multilayers increases with improving texture. Spatial fluctuations of the magneto-crystalline anisotropy energy create barriers for domain wall motion. The pinning field of domains increases with increasing grain size, The domain wall structure depends on he local magnetocrystalline anisotropy. The wall structure changes from a Bloch-type to a Neel-type walt as the local anisotropy constant decreases. The quality of texture and the grain size significantly influence the jaggedness of domains in Co/Pt multilayers. Large grains and strong deviations of the easy directions from the film normal deteriorate the smoothness of domains and increase the transition width. [References: 37]
机译：使用有限元方法开发了用于计算磁性多层系统中磁化过程的微磁模型。该算法的基本特征是考虑了多层结构的壳单元和用于治疗长距离偶极相互作用的磁矢量势。 Co / Pt多层系统中磁滞特性和畴结构的微磁计算表明，其与从场发射洛伦兹显微镜获得的磁图像在质量上是一致的。 Co / Pt多层体的形核场随织构的改善而增加。磁晶各向异性能的空间波动为畴壁运动创造了障碍。畴的钉扎场随着晶粒尺寸的增加而增加。畴壁的结构取决于局部磁晶各向异性。随着局部各向异性常数的减小，壁结构从Bloch型变为Neel型华尔特。织构质量和晶粒尺寸显着影响Co / Pt多层中畴的锯齿状。较大的晶粒和容易偏离薄膜法线的方向会严重破坏畴的光滑度并增加过渡宽度。 [参考：37]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号