We published a new study in Physical Review Letters on March 21, 2023, reporting ultrafast dynamics of the anomalous Hall effect in the topological antiferromagnet Mn3Sn using polarization rotation of terahertz pulses with a sub-100 fs time resolution. The findings illuminate the microscopic origin of the ultrafast anomalous Hall effect and provide valuable guidance for its application in creating ultrafast magnetic memory based on antiferromagnets.
The links to the publication and related press releases are included below.
Project Assistant Professor Dr. Matsuda is the leading author of this research. Project Associate Professor Dr. Higo, graduate students Ms. Peng and Mr. Matsuo, and Prof. Nakatsuji are also involved in this project.
T. Matsuda, T. Higo, T. Koretsune, N. Kanda, Y. Hirai, H. Peng, T. Matsuo, N. Yoshikawa, R. Shimano, S. Nakatsuji, and R. Matsunaga,
"Ultrafast Dynamics of Intrinsic Anomalous Hall Effect in the Topological Antiferromagnet Mn3Sn"
Press releases (in Japanese):
Institute for Solid State Physics, University of Tokyo: https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=18135
Graduate School of Science, University of Tokyo: https://www.s.u-tokyo.ac.jp/ja/press/2023/8340/
(Figure is cited from https://www.s.u-tokyo.ac.jp/ja/press/2023/8340/.)