Vortex dynamics in triangular-shaped confining potentials

Andreas Vogel; Anna Corinna Niemann; Charlotte Stenner; Andre Drews; Mi-Young Im; Peter Fischer; Guido Meier

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Vortex dynamics in triangular-shaped confining potentials

机译：三角形约束势中的涡旋动力学

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Triangular-shaped permalloy microstructures in the vortex magnetization state are studied via transmission soft x-ray microscopy, broadband-ferromagnetic resonance measurements, and micromagnetic simulations. The vortex chirality can be controlled via the direction of a saturating in-plane magnetic field applied before nucleation of the vortex state. The resonance frequencies of vortex gyration are probed for different equilibrium positions within the magnetic structure to determine the shape of the asymmetric confining potential. The experimental results are shown to coincide with micromagnetic simulations.

机译：通过透射软X射线显微镜，宽带铁磁共振测量和微磁模拟研究了涡旋磁化状态下的三角形坡莫合金的微观结构。可以通过在涡旋态成核之前施加的饱和面内磁场的方向来控制涡旋手性。在磁结构内的不同平衡位置探测涡旋回旋的共振频率，以确定不对称约束电位的形状。实验结果表明与微磁模拟相吻合。

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来源
《Journal of Applied Physics》 |2012年第6期|p.063916.1-063916.4|共4页
作者
Andreas Vogel; Anna Corinna Niemann; Charlotte Stenner; Andre Drews; Mi-Young Im; Peter Fischer; Guido Meier;
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作者单位

Institut fuer Angewandte Physik und Zentrum fuer Mikrostrukturforschung, Universitdt Hamburg, 20355 Hamburg, Germany;

Institut fuer Angewandte Physik und Zentrum fuer Mikrostrukturforschung, Universitdt Hamburg, 20355 Hamburg, Germany;

Institut fuer Angewandte Physik und Zentrum fuer Mikrostrukturforschung, Universitdt Hamburg, 20355 Hamburg, Germany;

Institut fuer Angewandte Physik und Zentrum fuer Mikrostrukturforschung, Universitdt Hamburg, 20355 Hamburg, Germany,Arbeitsbereich Technische Informatik Systeme, Universitaet Hamburg, 22527 Hamburg, Germany;

Centerfor X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

Centerfor X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

Institut fuer Angewandte Physik und Zentrum fuer Mikrostrukturforschung, Universitdt Hamburg, 20355 Hamburg, Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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Vortex dynamics in triangular-shaped confining potentials

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