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arXiv 2103.08996cond-mat.mes-hall
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磁有序绝缘体中的全电磁振子输运实验

All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators

Matthias Althammer

摘要:

角动量输运是自旋电子学的基石之一。在磁有序系统中,自旋角动量不仅通过可动载流子传输,而且通过磁晶格的量子化激发传输。在这方面,磁有序绝缘体提供了一个平台,磁振子自旋输运实验没有额外的贡献,从自旋电流携带的移动电子。结合有限自旋-轨道耦合导体中的电荷-自旋电流转换过程,有可能在薄膜异质结构中实现全电磁振子输运方案。这篇评论提供了一个深入了解这样的实验和最近取得的突破。特别注意的是通过一个相邻的正常金属的磁有序绝缘体中的磁振子输运的自旋转移力矩的电荷电流为基础的操纵。此外,还讨论了反铁磁绝缘体中两种自旋相反的磁振子模对全电磁振子输运实验的影响。

英文摘要:

Angular momentum transport is one of the cornerstones of spintronics. Spin angular momentum is not only transported by mobile charge carriers, but also by the quantized excitations of the magnetic lattice in magnetically ordered systems. In this regard, magnetically ordered insulators provide a platform for magnon spin transport experiments without additional contributions from spin currents carried by mobile electrons. In combination with charge-to-spin current conversion processes in conductors with finite spin-orbit coupling it is possible to realize all-electrical magnon transport schemes in thin film heterostructures. This review provides an insight into such experiments and recent breakthroughs achieved. Special attention is given to charge current based manipulation via an adjacent normal metal of magnon transport in magnetically ordered insulators in terms of spin-transfer torque. Moreover, the influence of two magnon modes with opposite spin in antiferromagnetic insulators on all-electrical magnon transport experiments is discussed.

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。

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