论文标题

长度尺度上的手性磁空

Chiral magnetic skyrmions across length scales

论文作者

Komineas, Stavros, Melcher, Christof, Venakides, Stephanos

论文摘要

在具有dzyaloshinskii-moriya相互作用的磁性材料中发现的手性天空的曲线和能量可以通过通过渐近分析获得的公式近似于大小的天空半径。使用拟合技术,我们修改了这些公式,以使它们的有效性几乎扩展到整个Skyrmion Radii的范围。对于在存在外场或易于轴各向异性或这些组合的情况下稳定的天际,获得了这种公式。我们进一步研究磁场场对天际剖面的影响。我们比较了磁性气泡的轮廓,没有手性dzyaloshinskii-moriya的相互作用与手性天空的相互作用进行了比较。

The profile and energy of chiral skyrmions, found in magnetic materials with the Dzyaloshinskii-Moriya interaction, can be approximated by formulae obtained through asymptotic analysis in the limits of small and large skyrmion radius. Using fitting techniques, we modify these formulae so that their validity extends to almost the entire range of skyrmion radii. Such formulae are obtained for skyrmions that are stabilised in the presence of an external field or easy-axis anisotropy or a combination of these. We further study the effect of the magnetostatic field on the skyrmion profile. We compare the profile of magnetic bubbles, stabilized without the chiral Dzyaloshinskii-Moriya interaction to that of a chiral skyrmion.

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