Ultrafast magnetization driven by spiral current in Kitaev spin liquid α-RuCl3

T. Amano; Y. Kawakami; H. Itoh; T. Aoyama; Y. Imai; K. Ohgushi; Y. Nakamura; H. Kishida; K. Yonemitsu; S. Iwai

doi:10.1364/UP.2022.Tu2A.2

The International Conference on Ultrafast Phenomena (UP) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper Tu2A.2
•https://doi.org/10.1364/UP.2022.Tu2A.2

Ultrafast magnetization driven by spiral current in Kitaev spin liquid α-RuCl₃

T. Amano, Y. Kawakami, H. Itoh, T. Aoyama, Y. Imai, K. Ohgushi, Y. Nakamura, H. Kishida, K. Yonemitsu, and S. Iwai

International Conference on Ultrafast Phenomena 2022

Montreal, Quebec Canada
18–22 July 2022
ISBN: 978-1-957171-07-4

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Ultrafast Magnetism and Carrier Dynamics (Tu2A)

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T. Amano, Y. Kawakami, H. Itoh, T. Aoyama, Y. Imai, K. Ohgushi, Y. Nakamura, H. Kishida, K. Yonemitsu, and S. Iwai, "Ultrafast magnetization driven by spiral current in Kitaev spin liquid α-RuCl3," in The International Conference on Ultrafast Phenomena (UP) 2022, F. Légaré, T. Tahara, J. Biegert, T. Brixner, and N. Dudovich, eds., Technical Digest Series (Optica Publishing Group, 2022), paper Tu2A.2.

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Abstract

In a honeycomb-lattice Mott insulator α-RuCl₃, an ultrafast magnetization is induced by circularly polarized excitation of spin-orbit excitons. An ultrafast 6-fs measurement clarifies that the orbital moment emerges from a coherent inter-orbital charge motion.

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