Yudin Dmitry, Gulevich Dmitry R, Titov Mikhail
ITMO University, Saint Petersburg 197101, Russia.
Radboud University Nijmegen, Institute for Molecules and Materials, NL-6525 AJ Nijmegen, The Netherlands.
Phys Rev Lett. 2017 Oct 6;119(14):147202. doi: 10.1103/PhysRevLett.119.147202. Epub 2017 Oct 4.
An external off-resonant pumping is proposed as a tool to control the Dzyaloshinskii-Moriya interaction (DMI) in ferromagnetic layers with strong spin-orbit coupling. Combining theoretical analysis with numerical simulations for an s-d-like model, we demonstrate that linearly polarized off-resonant light may help stabilize novel noncollinear magnetic phases by inducing a strong anisotropy of the DMI. We also investigate how with the application of electromagnetic pumping one can control the stability, shape, and size of individual Skyrmions to make them suitable for potential applications.
提出了一种外部非共振泵浦方法，作为控制具有强自旋轨道耦合的铁磁层中Dzyaloshinskii-Moriya相互作用（DMI）的一种手段。通过对类s-d模型进行理论分析和数值模拟相结合，我们证明线性偏振非共振光可以通过诱导DMI的强各向异性来帮助稳定新型非共线磁相。我们还研究了如何通过应用电磁泵浦来控制单个斯格明子的稳定性、形状和尺寸，使其适合潜在应用。
