中国科学技术大学自旋电子材料与器件实验室--自旋电子材料与器件实验室-- Zheng D, Tang M, Xu J, et al. Temperature-dependent magnon torque in SrIrO3/NiO/ferromagnetic multilayers[J]. Applied Physics Letters, 2024, 124(10).

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Zheng D, Tang M, Xu J, et al. Temperature-dependent magnon torque in SrIrO3/NiO/ferromagnetic multilayers[J]. Applied Physics Letters, 2024, 124(10).

发布时间：2024-04-23点击次数：

发表刊物：
Applied Physics Letters
摘要：
Magnetization switching driven by magnons is a promising technology capable of substantially decreasing energy dissipation and potential damage to spintronic devices. In this study, we investigated the temperature-dependent magnon torque effect in SrIrO3/NiO/ferromagnetic multilayers. It is found that the magnon-mediated damping-like spin–orbit torque (SOT) efficiency decreases with increasing temperature. Enhanced magnon transmission was observed in the vicinity of the blocking temperature of the NiO layer, which can be ascribed to the amplification of damping-like SOT efficiency by the spin fluctuations. More importantly, we have demonstrated that the magnon-mediated SOT is an effective method to manipulate a perpendicular magnetization, particularly using a critical switching current density that is pretty low, as evidenced by ∼ 4 × 105 A/cm2 for SrRuO3/NiO/SrIrO3 trilayers in this study. These findings suggest a promising avenue for the development of highly efficient spintronic devices operable through magnon currents.
论文类型：
期刊论文
卷号：
124
期号：
10
是否译文：
否
发表时间：
2024-03-04
发布期刊链接：
https://doi.org/10.1063/5.0187983