CAJ | 학술논문

量子磁盘由于记录点尺寸很小,用常规的磁场测量方法无法对其表面磁场分布数值图进行测试.为了证实量子磁盘的可行性,该文对量子磁盘表面的磁场分布用有限元软件进行模拟计算,在假设量子磁盘的磁化方向为水平磁化的前提下,得到了圆形量子点直径为20 nm;量子点间距离为10 nm;方形量子点边长为20 nm,间距为20 nm的情况下量子磁盘的二维表面磁场分布图,证实了其表面磁场分布具有明显的周期性,周期长度为量子点大小加上量子点间距离.并且所得到的磁场分布图为量子磁盘的理论研究提供了一定的参考数据.
양자자반유우기록점척촌흔소,용상규적자장측량방법무법대기표면자장분포수치도진행측시.위료증실양자자반적가행성,해문대양자자반표면적자장분포용유한원연건진행모의계산,재가설양자자반적자화방향위수평자화적전제하,득도료원형양자점직경위20 nm;양자점간거리위10 nm;방형양자점변장위20 nm,간거위20 nm적정황하양자자반적이유표면자장분포도,증실료기표면자장분포구유명현적주기성,주기장도위양자점대소가상양자점간거리.병차소득도적자장분포도위양자자반적이론연구제공료일정적삼고수거.
Because the small size of recording dots in quantum magnetic disk, it is very difficult to measure the magnetic field numerical distribution using the ordinary method. To prove the feasibility of quantum magnetic disk, magnetic-field distribution of quantum magnetic disk is calculated by finite element method (FEM) software. On the assumption of the magnetization direction is horizontal, we obtain 2D magnetic field distribution of circle quantum dots with diameter 20 nm and distance 10 nm and that of square quantum dots with edge 20 nm and distance 20 nm. It is proved that the magnetic fields distribute periodically and the length of period is the length of dot plus the distance between the dots. This calculation could be a good reference for the reseach of quantum magnetic disk.