论文标题

接近耦合的超导体 - 铁磁铁 - 导体多层的磁化动力学。第二部分

Magnetization dynamics in proximity-coupled superconductor-ferromagnet-superconductor multilayers. Part II

论文作者

Golovchanskiy, I. A., Abramov, N. N., Ryazanov, V. V., Golubov, A. A., Stolyarov, V. S.

论文摘要

在这项工作中,我们研究了超导体 - 铁磁铁 - 渗透导体薄膜结构中的磁化动力学。据报道,对于大型样品,具有较大厚度的超导层和铁电磁层的宽带铁磁共振光谱的结果是在广泛的频率,田间和温度范围内。在实验上,建立了超导扭矩对磁化动力学的一维各向异性作用。揭示了其对层厚度的依赖性。证明实验发现通过超导动力电感和超导体 - 导铁磁铁接口的超导动力电感和磁化进液之间的相互作用来支持最近提供的超导扭矩形成的机制。

In this work, we study magnetization dynamics in superconductor-ferromagnet-superconductor thin-film structures. Results of the broad-band ferromagnetic resonance spectroscopy are reported for a large set of samples with varied thickness of both superconducting and ferromagnetic layers in a wide frequency, field, and temperature ranges. Experimentally the one-dimensional anisotropic action of superconducting torque on magnetization dynamics is established; its dependence on thickness of layers is revealed. It is demonstrated that experimental findings support the recently-proposed mechanism of the superconducting torque formation via the interplay between the superconducting kinetic inductance and magnetization precession at superconductor-ferromagnet interfaces.

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