CAJ | 학술논문

基于一维原子链模型，理论和数值计算研究了软磁/硬磁双层膜交换弹性磁体系的退磁过程和本征自旋波性质。研究表明：薄软磁层诱发可逆的交换弹性退磁过程，随着软磁层厚度增大，不可逆交换弹性退磁过程被激发。获得了双层膜的软磁层本征自旋波模式空间分布、色散关系曲线，退磁过程自旋波模式频率随外磁场的变化规律。研究显示退磁过程中软磁层微磁结构变化与自旋波模式软化密切相关。
기우일유원자련모형，이론화수치계산연구료연자/경자쌍층막교환탄성자체계적퇴자과정화본정자선파성질。연구표명：박연자층유발가역적교환탄성퇴자과정，수착연자층후도증대，불가역교환탄성퇴자과정피격발。획득료쌍층막적연자층본정자선파모식공간분포、색산관계곡선，퇴자과정자선파모식빈솔수외자장적변화규률。연구현시퇴자과정중연자층미자결구변화여자선파모식연화밀절상관。
Based on the one-dimensional atomic chain model theory and data calculating, this paper analyzes the de-magnetization process and the characteristics of spin wave of exchange elastic bilayer membrane. The study shows that the thin and soft magnetosphere triggers reversible exchange elastic demagnetization process and the irreversible demag-netization process is stimulated with the increase of the thickness of the soft magnetosphere. The Study shows that there is a close connection between the structure change of the soft magnetosphere during demagnetization process and the model softening of the spin wave.