CAJ | 학술논문

用微磁学理论对外径为300nm、内径为50nm、厚度为30nm、含有60o扇形缺口的Co纳米环2×2阵列在不同方向(垂直和平行于环的缺口方向)磁场作用下的磁化反转过程进行模拟.当磁场垂直缺口方向时, Co 纳米环阵列的磁滞回线形状都呈现出哑铃-旁瓣结构;剩磁态为磁通封闭结构(d=300nm 除外).当单元之间的距离为环外径的二倍时,它们之间的静磁耦合作用对阵列的磁滞回线形状和剩磁态的影响就可以忽略.
용미자학이론대외경위300nm、내경위50nm、후도위30nm、함유60o선형결구적Co납미배2×2진렬재불동방향(수직화평행우배적결구방향)자장작용하적자화반전과정진행모의.당자장수직결구방향시, Co 납미배진렬적자체회선형상도정현출아령-방판결구;잉자태위자통봉폐결구(d=300nm 제외).당단원지간적거리위배외경적이배시,타문지간적정자우합작용대진렬적자체회선형상화잉자태적영향취가이홀략.
Magnetization reversal for slotted Co nanoring array were investigated based on micromagnetics theory. The magnetization reversal in nanorings with 30-nm-thick, 60°slotted angle (?) and outer/inter diameter 300nm/50nm were studied under applied field perpendicular and parallel to the slot direction. It showed that the hysteresis loops of Co nanorings array are dumbbell-side lobe structure under applied field perpendicular to the slot direction and Co nanorings have stable flux-closure remanent states(except d=300nm) . When the distance of elements is double outer diameter of nanorings, the magnetostatic interaction between neighboring elements can be neglected.