Demonstration of high-throughput magnetic hysteresis measurements based on spintronic THz emission
Date
2023-12-21
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Applied Physics
Abstract
Spintronic terahertz (THz) emitters have been shown to be a cost-efficient source for use in time-domain THz spectroscopy. The use of external magnetic fields to control the polarity of the THz emission provides an opportunity to measure the magnetization of spintronic materials as well as shaping THz emission. Here, we demonstrate an efficient method of measuring magnetic hysteresis with material sensitivity and speed several orders of magnitude greater than typical magnetometry methods. In addition, we utilize the rapid control of material magnetization for lock-in detection in time-domain THz spectroscopy of spintronic emitters. The ability to rapidly control and measure the material magnetization on very small volumes provides an opportunity to study magnetic hetero-structures with sub-micron spatial resolution.
Description
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in M. F. DeCamp, S. Bhatt, M. T. Hossain, W. Wu, M. B. Jungfleisch; Demonstration of high-throughput magnetic hysteresis measurements based on spintronic THz emission. J. Appl. Phys. 21 December 2023; 134 (23): 233901. https://doi.org/10.1063/5.0165081 and may be found at https://doi.org/10.1063/5.0165081. © 2023 Author(s). Published under an exclusive license by AIP Publishing. This article will be embargoed until 12/21/2024.
Keywords
terahertz radiation, magnetic hysteresis, magnetic materials, terahertz spectroscopy, thin films
Citation
M. F. DeCamp, S. Bhatt, M. T. Hossain, W. Wu, M. B. Jungfleisch; Demonstration of high-throughput magnetic hysteresis measurements based on spintronic THz emission. J. Appl. Phys. 21 December 2023; 134 (23): 233901. https://doi.org/10.1063/5.0165081