论文标题
通过全局应用圆形极化微波磁场来创建纳米磁性天际
Creation of nanometric magnetic skyrmions by global application of circularly polarized microwave magnetic field
论文作者
论文摘要
从理论的角度来看，我们证明了通过将圆形极化的微波磁场施加到薄板dzyaloshinskii-moriya ferromagnet上，并用矩形的孔孔施加纳米磁性天空。这种现象是由垂直于旋转磁场诱导的微波极化平面的有效稳定磁场引起的，并且由于孔结构而引起的磁场激发的自旋波的强烈干扰，这导致局部磁化的逆转并导致Skyrmions的形成。我们的建议提供了一个新的选项，以编写或创建磁纹理的尺寸，其尺寸比磁场，光和微波炉等外部刺激的点大小要小得多。
From a theoretical perspective, we demonstrate that nanometric magnetic skyrmions are created by application of a circularly polarized microwave magnetic field to a thin-plate Dzyaloshinskii-Moriya ferromagnet with fabricated rectangular holes. This phenomenon is caused by an effective steady magnetic field perpendicular to the microwave-polarization plane induced by the rotating magnetic field and the intense interference of spin waves excited by this magnetic field due to the hole structure, which causes reversals of local magnetizations and results in the formation of skyrmions. Our proposal provides a new option to write or create magnetic textures the sizes of which are much smaller than the spot size of the external stimulus such as magnetic field, light, and microwave.
