搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

外应力场下双层铁磁薄膜中的铁磁共振性质

荣建红 云国宏

引用本文:
Citation:

外应力场下双层铁磁薄膜中的铁磁共振性质

荣建红, 云国宏
cstr: 32037.14.aps.56.5483

Ferromagnetic resonance in ferromagnetic bilayer films under the stress anisotropy

Rong Jian-Hong, Yun Guo-Hong
cstr: 32037.14.aps.56.5483
PDF
导出引用
  • 用铁磁共振方法得到了双层铁磁薄膜的色散关系解析表达式.发现共振场依赖于层间耦合强度和应力场.假定层间为反铁磁性耦合,且铁磁层A有较强的平面内各向异性.随着外磁场的增强,铁磁层B中的磁化强度突然由最初的反平行转为平行,从而导致色散曲线的阶跃,并且发现光学模阶跃幅度比声学模大.随着应力场的增强,B层中磁化强度反转所需的外磁场减弱.此外,在不同的交换耦合强度和应力场下,光学模共振场对外磁场方向的依赖性较强.
    The ferromagnetic resonance (FMR) technique has been used to investigate the properties of ferromagnetic/nonmagnetic/ferromagnetic systems. We derived the FMR dispersion relation, taking into account the competition between the indirect interlayer coupling and stress anisotropy. In this case,one of the layers A has a strong in-plane anisotropy compared with the coupling strength and the in-plane anisotropy of the other layer B. As the applied field increases,magnetization of layer B may suddenly switch from the antiparallel configuration to the saturated state. The discontinuities are more important for the optical than for the acoustic modes. For the optical mode,the effect of interlayer coupling and stress anisotropy on the HR vs φH curves is more apparent.
    • 基金项目: 教育部新世纪优秀人才支持计划(批准号:NECT-05-0272),教育部科学技术研究重点项目(批准号:206024)和国家自然科学基金(批准号:10147203)资助的课题.
计量
  • 文章访问数:  9680
  • PDF下载量:  1114
  • 被引次数: 0
出版历程
  • 收稿日期:  2006-12-24
  • 修回日期:  2007-01-30
  • 刊出日期:  2007-09-20

/

返回文章
返回