Collective dynamical skyrmion excitations in a magnonic crystal

M. Mruczkiewicz; P. Gruszecki; M. Zelent; M. Krawczyk

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Collective dynamical skyrmion excitations in a magnonic crystal

机译：镁质晶体中的集体动态天文子激发

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We investigate theoretically the magnetization dynamics in a skyrmion magnonic crystal. Collective excitations are studied in a chain of touching ferromagnetic nanodots in a skyrmion magnetic configuration. The determined dispersion relation of coupled skyrmions shows a periodic dependence on the wave vector, a characteristic feature of the band structure in magnonic crystals. By spatial analysis of the magnetization amplitude in the magnonic bands we identify the excited modes as breathing and clockwise gyrotropic dynamic skyrmions. Propagating with a negative and positive group velocity, respectively, these high- and low-frequency excitations can be further explored theoretically and experimentally for fundamental properties and technological applications in spintronics and magnonics.

机译：我们从理论上研究了天rm子强磁晶体中的磁化动力学。在天空铁磁的磁性结构中，在一系列接触铁磁纳米点中研究了集体激发。所确定的耦合天体的色散关系显示出对波矢的周期性依赖性，这是强磁晶体中能带结构的特征。通过对强磁带中磁化幅度的空间分析，我们将激发模式识别为呼吸和顺时针旋回型动态天空。这些高频和低频激励分别以负和正的群速度传播，因此可以在理论和实验上进一步探索自旋电子学和强磁学的基本特性和技术应用。

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《Physical review》 |2016年第17期|174429.1-174429.7|共7页
作者
M. Mruczkiewicz; P. Gruszecki; M. Zelent; M. Krawczyk;
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Faculty of Physics, Adam Mickiewicz University in Poznan, Umultowska 85, Poznari, PL-61-614 Poland,Laboratoire Ondes et Matiere d'Aquitaine, Universite Bordeaux, CNRS, F-33405 Talence, France,Institute of Electrical Engineering, Slovak Academy of Sciences, Dubravska Cesta 9, SK-841-04 Bratislava, Slovakia;

Faculty of Physics, Adam Mickiewicz University in Poznan, Umultowska 85, Poznari, PL-61-614 Poland;

Faculty of Physics, Adam Mickiewicz University in Poznan, Umultowska 85, Poznari, PL-61-614 Poland;

Faculty of Physics, Adam Mickiewicz University in Poznan, Umultowska 85, Poznari, PL-61-614 Poland;

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1. Collective dynamical skyrmion excitations in a magnonic crystal [J] . Mruczkiewicz M., Gruszecki P., Zelent M., Physical review, B . 2016,第17期

机译：镁质晶体中的集体动态天文子激发
2. Magnonic band structure, complete bandgap, and collective spin wave excitation in nanoscale two-dimensional magnonic crystals [J] . D. Kumar, J. W. Klos, M. Krawczyk, Journal of Applied Physics . 2014,第4期

机译：纳米级二维磁子晶体中的磁能带结构，完全带隙和集体自旋波激发
3. Collective spin excitations of helices and magnetic skyrmions: review and perspectives of magnonics in non-centrosymmetric magnets [J] . Garst Markus, Waizner Johannes, Grundler Dirk Journal of Physics, D. Applied Physics: A Europhysics Journal . 2017,第29期

机译：螺旋和磁性漏洞的集体旋转激发：非亚里索对称磁铁中的榴弹度审查和透视
4. Magnonic bandstucture in a skyrmion crystal [C] . Ma, F., Braun, H., Zhou, Y., IEEE Magnetics Conference . 2015

机译：Skyrmion晶体中的磁能带结构
5. Properties and dynamics of spin waves in one and two dimensional magnonic crystals. [D] . Sietsema, Glade Robert. 2016

机译：一维和二维镁磁晶体中自旋波的性质和动力学。
6. Collective modes in three-dimensional magnonic vortex crystals [O] . Max Hänze, Christian F. Adolff, Benedikt Schulte, -1

机译：三维强磁涡旋晶体中的集体模式
7. Collective dynamical skyrmions excitations in magnonic crystal [O] . Mruczkiewicz, M., Gruszecki, P., Zelent, M., 2015

机译：集体动力skyrmions激动的水晶水晶

Collective dynamical skyrmion excitations in a magnonic crystal

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