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Detection of the second harmonic response of magnetic nanostructures to an ac current is shown to be a very sensitive probe of the magnetization reversal process. A temperature oscillation is obtained by Joule heating instead of using a laser as the heat source, as in thermo-galvanic voltage measurements (TGV). Joule heating is used to produce a large local temperature gradient in asymmetric Co/Cu/Co spin valves. Evidence is found for an effect of a heat current on magnetization. 相似文献
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本文在文献[2]的基础上考虑了一类有拒绝的可批量到达的服务系统的平稳分布。文章首先给出了Q过程的常返性以及遍历性的充要条件,最后得出了系统的不变测度。 相似文献
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Three-magnon scattering, a nonlinear process in which a high-energy magnon splits into two low-energy magnons with energy and momentum conservation, has been widely studied in the magnonics community. Here, we report experimental observation of nonlinear three-magnon scattering in La0.67Sr0.33MnO3 thin films with low magnetic damping(~ 10-4) by all-electric and angle-resolved spin wave spectroscopy. The reflection spectra of the spin wave resonance wit... 相似文献
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