标题： 立方铁磁体在取向相变附近的非声子-光子相互作用：回顾与现象学研究 显示英文标题

标题： Mangnon-Phonon-Photon Interactions in Cubic Ferromagnets in the Vicinity of Orientational Phase Transition: Retrospective and Phenomenological Study

摘要： 这项工作提出了对立方铁磁体在取向相变（OPT）附近的磁振子-声子-光子相互作用的全面理论研究。 该研究聚焦于铁磁电介质和金属中的磁弹性（ME）、电磁自旋（EMS）和声电磁（AEM）相互作用之间的相互作用。 通过推导耦合波的色散方程，研究揭示了在变化的外部磁场和接近OPT点的情况下，磁有序晶体的动态特性如何响应这些相互作用而演变。 磁弹性（ME）相互作用显著影响自旋和弹性波的动力学，产生如准磁振子和准声波等耦合模式。 在OPT附近，这些相互作用变得主导，导致磁弹性带隙和振动模式软化等现象。 电磁自旋（EMS）相互作用显著改变准自旋和准电磁波的激活能和色散。 在铁磁金属中，螺旋波（弱阻尼的电磁波）与自旋和弹性波表现出强耦合，特别是在OPT区域。 该研究确定了自旋、弹性及电磁波之间三重共振的条件。 此外，它还探讨了电磁和磁弹性波的偏振平面频率依赖性旋转，这种旋转在OPT点附近变得更加明显。 这些结果加深了对铁磁材料中耦合动力学的理解，为自旋电子学、信号处理和先进磁光器件的新技术应用铺平了道路。 这里开发的理论框架强调了ME、EMS和AEM相互作用在定制特定应用波特性中的关键作用，尤其是在设计下一代磁性和电子系统方面。 显示英文摘要

摘要： This work presents a comprehensive theoretical investigation of magnon-phonon-photon interactions in cubic ferromagnets near orientational phase transitions (OPT). The study focuses on the interplay of magnetoelastic (ME), electromagnetic-spin (EMS), and acousticelectromagnetic (AEM) interactions in ferromagnetic dielectrics and metals. By deriving dispersion equations for coupled waves, the research reveals how the dynamic properties of magnetically ordered crystals evolve in response to these interactions under varying external magnetic fields and near OPT points. The ME interaction prominently influences spin and elastic wave dynamics, giving rise to coupled modes such as quasimagnon and quasi-acoustic waves. Near the OPT, these interactions become dominant, leading to phenomena like the magnetoelastic gap and softening of vibrational modes. The EMS interaction significantly alters the activation energy and dispersion of quasi-spin and quasi-electromagnetic waves. In ferromagnetic metals, helicons (weakly damped electromagnetic waves) exhibit strong coupling with spin and elastic waves, particularly in the OPT region. The study identifies conditions for triple resonance among spin, elastic, and electromagnetic waves. Additionally, it explores the frequency-dependent rotation of polarization planes in electromagnetic and magnetoelastic waves, which sharpens near OPT points. These results provide a deeper understanding of the coupled dynamics in ferromagnetic materials, paving the way for new technological applications in spintronics, signal processing, and advanced magneto-optical devices. The theoretical framework developed here emphasizes the critical role of ME, EMS, and AEM interactions in tailoring wave properties for specific applications, particularly in designing next-generation magnetic and electronic systems.