Abstract

The theoretical and experimental studies of the excitation, detection, and propagation of magnons in antiferromagnetic nanostructures have been reviewed. The properties of antiferromagnetic materials such as the absence of a macroscopic magnetization, the presence of strong exchange interactions, and a complex magnetocrystalline structure make it possible to implement new types of memory and functional electronic devices. The study of possible magnon effects in antiferromagnetic materials in micro- and nanoscales requires new experimental and theoretical approaches. In this review, the recent results on the excitation of magnetic oscillations—magnons—in antiferromagnetic materials induced by the current and optical radiation are described and systematized. The main theoretical results on antiferromagnets and multilayer antiferromagnetic heterostructures are presented. Models for description of phenomena induced by the current and optical pulses in nanoheterostructures including antiferromagnets are considered. Methods for studying antiferromagnetic micro- and nanostructures by means of Brillouin scattering, as well as prospects of the application of antiferromagnetic spintronics and magnonics, are briefly discussed.

中文翻译：

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太赫兹磁振子在反铁磁纳米结构中的激发：理论与实验

摘要

综述了反铁磁纳米结构中磁振子的激发，检测和传播的理论和实验研究。反铁磁材料的特性，例如不存在宏观磁化强度，不存在强交换相互作用以及复杂的磁晶结构，就可以实现新型的存储器和功能性电子设备。对微米和纳米级反铁磁材料中可能的磁振子效应的研究需要新的实验和理论方法。在这篇综述中，描述并系统化了有关由电流和光辐射引起的反铁磁材料中的磁振荡（磁振子）激发的最新结果。给出了反铁磁体和多层反铁磁异质结构的主要理论结果。考虑用于描述由电流和光脉冲在包括反铁磁体的纳米异质结构中引起的现象的模型。简要讨论了利用布里渊散射研究反铁磁微结构和纳米结构的方法，以及反铁磁自旋电子学和强磁学的应用前景。