Materials Engineering Enabled by Time-Resolved Magneto-Optical Kerr Effect for Spintronic Applications,ACS Applied Electronic Materials

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Materials Engineering Enabled by Time-Resolved Magneto-Optical Kerr Effect for Spintronic Applications
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2020-12-17 , DOI: 10.1021/acsaelm.0c00961
Dingbin Huang ₁ , Dustin Lattery ₁ , Xiaojia Wang ₁

Affiliation

As an updated version of the ultrafast pump–probe laser technique, the time-resolved magneto-optical Kerr effect (TR-MOKE) methodology enables the detection of magnetization dynamics with superb temporal (sub-picosecond) and spatial (diffraction-limited beam spot) resolutions. It is a powerful tool to characterize material properties and to reveal the rich physics of magnetization dynamics in magnetic thin films, which serve as the essential building blocks for spintronic and magnetic recording devices. In this spotlight article, we will highlight the recent advances in the development of TR-MOKE metrology and its applications for capturing the magnetization dynamics in technologically important spintronic materials. We cover several representative examples based on research activities carried out at the University of Minnesota (UMN), including studies of Gilbert damping, spin-strain coupling, and interlayer exchange coupling of perpendicular magnetic materials. A brief discussion will be also presented, which highlights several other emerging research topics that are potentially enabled by this metrology to form a more comprehensive picture of its applications for emerging materials and technologies.

中文翻译：

时间分辨磁光克尔效应实现的自旋电子应用材料工程

作为超快泵浦激光技术的更新版本，时间分辨磁光克尔效应（TR-MOKE）方法可实现出色的时间（亚皮秒）和空间（受衍射限制的束斑）的磁化动力学检测）决议。它是表征材料特性并揭示磁性薄膜中丰富的磁化动力学物理特性的强大工具，磁性薄膜是自旋电子学和磁性记录设备的基本构建块。在这篇焦点文章中，我们将重点介绍TR-MOKE计量学的最新进展及其在捕获技术上重要的自旋电子材料中的磁化动力学方面的应用。我们根据明尼苏达大学（UMN）开展的研究活动，介绍了几个具有代表性的示例，包括吉尔伯特阻尼，自旋应变耦合和垂直磁性材料的层间交换耦合的研究。还将进行简短的讨论，重点介绍该计量技术可能使其他新兴的研究主题，从而更全面地描述其在新兴材料和技术中的应用。

更新日期：2021-01-26

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