| 铁磁/反铁磁双层薄膜中自旋波特性研究 |
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| 引用本文： | 王焕,云国宏,荣建红.铁磁/反铁磁双层薄膜中自旋波特性研究[J].低温物理学报,2010(4). |
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| 作者姓名： | 王焕 云国宏 荣建红 |
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| 作者单位： | 内蒙古农业大学理学院;内蒙古大学物理科学与技术学院;内蒙古师范大学物理与电子信息学院; |
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| 基金项目： | 国家自然科学基金(批准号:10147203); 内蒙古大学高层次引进人才科研启动基金(批准号:207057); “内蒙古农业大学科技创新团队计划”(NDPYTD2010-7)资助的课题~~ |
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| 摘 要： | 本文在一维海森堡模型的基础上,采用界面参数化方法,研究了非周期性边界条件下,铁磁/反铁磁双层薄膜中自旋波低温激发问题.重点讨论了表面各项异性对薄膜中自旋波谱、色散关系的影响.结果表明:表面各向异性对铁磁层中自旋波谱影响较大,对色散关系影响甚微。
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| 关 键 词： | 铁磁-反铁磁薄膜 表面各项异性 色散关系 自旋波 |
SPIN WAVES STUDY OF FERROMAGNETIC/ANTIFERROMAGNETIC BILAYER FILMS |
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| WANG Huan YUN Guo-hong, RONG Jian-hong College of Science,Inner Mongolia Agricultural University,Hohhot,School of Physical Science , technology,Inner Mongolia University,Hohhot,College of Physics , Electronic Information,Inner Mongolia Normal University,Hohhot.SPIN WAVES STUDY OF FERROMAGNETIC/ANTIFERROMAGNETIC BILAYER FILMS[J].Chinese Journal of Low Temperature Physics,2010(4). |
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| Authors: | WANG Huan YUN Guo-hong RONG Jian-hong College of Science Inner Mongolia Agricultural University Hohhot School of Physical Science technology Inner Mongolia University Hohhot College of Physics Electronic Information Inner Mongolia Normal University Hohhot |
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| Institution: | WANG Huan1 YUN Guo-hong2,3 RONG Jian-hong2 1College of Science,Inner Mongolia Agricultural University,Hohhot010018,2School of Physical Science and technology,Inner Mongolia University,Hohhot010021,3College of Physics and Electronic Information,Inner Mongolia Normal University,Hohhot010022 |
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| Abstract: | Based on one-dimension Heisenberg model,the eigenproblems of spin waves in a ferromagnetic and antiferromagnetic bilayer system with nonperiodic boundary conditions are solved using the interface-rescaling approach.We put emphases on the effect of anisotropy fields at the surface of the system.It is shown that the waveforms of the spin waves are uniquely determined by the intensity of surface anisotropy field in ferromagnetic film.However,the dispersion relations curves are not changed. |
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| Keywords: | FM/AFM bilayers Surface anisotropy Dispersion relations Spin waves |
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