Skyrmionics in correlated oxides
Skyrmionics in correlated oxides
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DOI：
10.1557/s43577-021-00227-9
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发表时间：
2022-01-01
期刊：
影响因子：
5
通讯作者：
Ariando, A.
中科院分区：
文献类型：
--
作者：
Lim, Zhi Shiuh;Jani, Hariom;Ariando, A.
虽然手性磁体，金属基磁性多层膜或Heusler化合物已被认为是Skyrmionics领域的材料主力，但氧化物现在正成为有前途的替代品，因为它们具有自旋-轨道-电荷-晶格自由度和/或耦合铁电序参数之间的特殊相关性。这些相互作用为实际利用skyrmionics开辟了新的可能性。本文综述了近年来在各种氧化物体系中拓扑自旋织构的观测和控制方面的研究进展。我们首先在大块和异质结构铁磁氧化物中发现了skyrmions和相关的准粒子。接下来，我们强调的缺点，实现铁磁纹理，这导致了最近的探索亚铁磁和反铁磁氧化物对应物，具有较高的居里温度，杂散场免疫力，低吉尔伯特阻尼，超快磁动力学，和/或没有skyrmion偏转。然后，我们重点介绍了使用电场和电流控制拓扑纹理的稳定性、运动和检测的新型途径的开发。最后，我们提出了需要克服的突出挑战，以实现全电，非易失性，低功耗的氧化物skyrmionic设备。
While chiral magnets, metal-based magnetic multilayers, or Heusler compounds have been considered as the material workhorses in the field of skyrmionics, oxides are now emerging as promising alternatives, as they host special correlations between the spin-orbital-charge-lattice degrees of freedom and/or coupled ferroic order parameters. These interactions open new possibilities for practically exploiting skyrmionics. In this article, we review the recent advances in the observation and control of topological spin textures in various oxide systems. We start with the discovery of skyrmions and related quasiparticles in bulk and heterostructure ferromagnetic oxides. Next, we emphasize the shortcomings of implementing ferromagnetic textures, which have led to the recent explorations of ferrimagnetic and antiferromagnetic oxide counterparts, with higher Curie temperatures, stray-field immunity, low Gilbert damping, ultrafast magnetic dynamics, and/or absence of skyrmion deflection. Then, we highlight the development of novel pathways to control the stability, motion, and detection of topological textures using electric fields and currents. Finally, we present the outstanding challenges that need to be overcome to achieve all-electrical, nonvolatile, low-power oxide skyrmionic devices.