论文标题

抗铁磁铁中磁蛋白旋转效果的透视

A Perspective on Magnon Spin Nernst Effect in Antiferromagnets

论文作者

Zhang, Hantao, Cheng, Ran

论文摘要

抗铁磁材料及其物理含义中的镁激发使得新型装置概念在铁磁体中不可用,这是一种新的积极研究的领域。抗铁磁镁的独特特征是相反的自旋极化的共存,它模仿了各种传输现象中的电子自旋。其中,最突出的自旋控制现象是镁旋转Nernst效应(SNE),它是指通过纵向温度梯度产生的横向纯木旋流电流。我们介绍了在共线抗铁磁铁中的磁蛋白SNE研究中的最新进展,重点是其潜在的物理机制,具有镁带结构的深刻拓扑特征。通过回顾磁杆SNE如何启发和丰富了拓扑镁的探索,我们就对这个新兴边界的观点提供了我们的观点,在未来的Spintronic纳米技术中具有潜力。

Magnon excitations in antiferromagnetic materials and their physical implications enable novel device concepts not available in ferromagnets, emerging as a new area of active research. A unique characteristic of antiferromagnetic magnons is the coexistence of opposite spin polarization, which mimics the electron spin in a variety of transport phenomena. Among them, the most prominent spin-contrasting phenomenon is the magnon spin Nernst effect (SNE), which refers to the generation of transverse pure magnon spin current through a longitudinal temperature gradient. We introduce selected recent progress in the study of magnon SNE in collinear antiferromagnets with a focus on its underlying physical mechanism entailing profound topological features of the magnon band structures. By reviewing how the magnon SNE has inspired and enriched the exploration of topological magnons, we offer our perspectives on this emerging frontier that holds potential in future spintronic nano-technology.

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