原子与分子物理学报2012，Vol.29Issue(3)：539-543,5.DOI:10.3969/j.issn.1000-0364.2012.03.027
异质双层磁性薄膜中自旋波的波形演化
The waveforms evolvement of spin waves in heterogeneity magnetic bilayer films
摘要
Abstract
Based on the one-dimension Heisenberg model, the eigenproblems of spin waves in a heterogeneity magnetic bilayers system are solved using the interface-rescaling approach. The waveforms evolvement process of bulk modes and perfect-confined modes are discussed. The waveforms of bulk modes present cosine with spin wave vector. The local resonance phenomena are observed. The influence of excitation energy on bulk mode and perfect-confined mode of two sublayers is obvious. The wavelength and the amplitude of bulk mode are varied with excitation energy. With the increase at excitation energy, the wavelength of perfect-confined mode in ferromagnetic layer is shortened, the velocity is diminished and the amplitude is fixed.关键词
异质磁性薄膜/自旋波/界面参数化方法Key words
heterogeneity magnetic bilayer films/spin waves/interface-rescaling approach分类
数理科学引用本文复制引用
荣建红,王焕,云国宏..异质双层磁性薄膜中自旋波的波形演化[J].原子与分子物理学报,2012,29(3):539-543,5.基金项目
国家自然科学基金(11072104) （11072104）
内蒙古大学高层次引进人才科研启动基金(207057) （207057）
内蒙古大学科技创新团队基金(1001312110605) （1001312110605）
