自旋霍尔效应/自旋转移力矩驱动的 Cr/Heusler/Pt 波导中的自旋波与焦耳加热
介观与纳米尺度物理
2017-09-05 v2
摘要
我们通过布里渊光散射技术，对微结构 Cr/Heusler/Pt 波导中直流驱动的磁化动力学进行了时间分辨研究。自旋转移力矩效应导致有效自旋波阻尼降低，从而引起磁振子密度大幅增加，并伴随自旋波频率的下降。通过评估这些效应的时间尺度，可以确定该频移的起源。然而，我们最近发现实验装置在一定程度上影响了电流脉冲关闭后自旋波强度的衰减。因此，为了进行更详细的分析，需要对该效应做进一步研究。鉴于此，我们决定在此撤回手稿，并可能在未来发布更新版本。
引用
@article{arxiv.1701.02094,
title = {Spin-Wave versus Joule Heating in Spin-Hall-Effect/Spin-Transfer-Torque Driven Cr/Heusler/Pt Waveguides},
author = {T. Meyer and T. Brächer and F. Heussner and A. A. Serga and H. Naganuma and K. Mukaiyama and M. Oogane and Y. Ando and B. Hillebrands and P. Pirro},
journal= {arXiv preprint arXiv:1701.02094},
year = {2017}
}
备注
Recently, we found that the experimental setup partially influences the decay of the spin-wave intensity after the current pulse is switched off. Thus, further investigations on the presented effect are needed to allow for a more detailed analysis. For this reason, we need to withdraw the manuscript at this point and might publish an updated version later