Current-Driven Switching of Néel Vector of an Antiferromagnetic Insulator Thin Film,Advanced Electronic Materials

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Current-Driven Switching of Néel Vector of an Antiferromagnetic Insulator Thin Film
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2023-08-25 , DOI: 10.1002/aelm.202300385
Fernando Ajejas ₁ , Felipe Torres _{2,

3} , Ali C. Basaran ₁ , Pavel Salev ₁ , Ivan K. Schuller ₁

Affiliation

Manipulation of antiferromagnetic (AFM) materials as active elements provides a crucial combination of electrical, thermal, and magnetic properties for spintronics. This study shows how the spin current generated in heavy metal is induced by spin-orbit torque into an adjacent AFM insulator. The bulk unpinned spins of the AFM layer drive a spin current that is transmitted to the top ferromagnet. This mechanism allows the electrical control of the exchange bias, coercive field, and blocking temperature of the system. Further support is provided by a model calculation that quantitatively describes the effect of the spin current injection into the AFM.

中文翻译：

反铁磁绝缘体薄膜 Néel 矢量的电流驱动切换

将反铁磁 (AFM) 材料作为活性元素进行操纵，为自旋电子学提供了电、热和磁特性的重要组合。这项研究展示了重金属中产生的自旋电流如何通过自旋轨道扭矩感应到相邻的 AFM 绝缘体中。AFM 层的大量非钉扎自旋驱动传输到顶部铁磁体的自旋电流。这种机制允许对系统的交换偏压、矫顽场和阻塞温度进行电控制。模型计算提供了进一步的支持，该模型计算定量描述了注入 AFM 的自旋电流的影响。

更新日期：2023-08-25

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