arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2102.08829cond-mat.mes-hall
收藏

共线磁绝缘系统中的磁振子

Magnonics in collinear magnetic insulating systems

Benedetta Flebus

摘要:

在过去的几十年里,共线磁绝缘系统已成为一种有前途的节能信息载体。它们的基本集体自旋激发,即,磁振子可以绕过由金属基器件中的电子散射引起的焦耳热效应而长距离传播。这篇指导性文章介绍了共线磁绝缘系统中磁振子研究的理论和实验进展。我们首先概述了铁磁和反铁磁系统中自旋波的量子理论,并讨论了它们的量子统计。我们回顾了耦合相干和非相干自旋动力学的自旋和热输运现象以及磁激发和晶格自由度之间的相互作用。最后,我们向读者介绍了两个实验探针的磁化动力学,自旋输运和NV中心弛豫设置的关键成分,并讨论了相关的实验结果概述的理论。

英文摘要:

In the last decades, collinear magnetic insulating systems have emerged as promising energy-saving information carriers. Their elementary collective spin excitations, i.e., magnons, can propagate for long distances bypassing the Joule heating effects that arise from electron scattering in metal-based devices. This tutorial article provides an introduction to theoretical and experimental advances in the study of magnonics in collinear magnetic insulating systems. We start by outlining the quantum theory of spin waves in ferromagnetic and antiferromagnetic systems and we discuss their quantum statistics. We review the phenomenology of spin and heat transport of the coupled coherent and incoherent spin dynamics and the interplay between magnetic excitations and lattice degrees of freedom. Finally, we introduce the reader to the key ingredients of two experimental probes of magnetization dynamics, spin transport and NV-center relaxometry setups, and discuss experimental findings relevant to the outlined theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑