High harmonic generation in Mott-insulating Ca2RuO4

Kento Uchida,Giordano Mattoni,Shingo Yonezawa,Fumihiko Nakamura,Yuta Murakami,Akihisa Koga, Phillip Werner,Yoshiteru Maeno,Koichiro Tanaka

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)（2022）

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摘要

We observed high harmonic generation in Mott-insulating Ca 2 RuO 4 , and found an empirical scaling law of high harmonic yields. A theoretical model considering the spin-charge effect and thermal fluctuation qualitatively reproduces the observed scaling law. Our observation and calculation indicate that high harmonic generation can be a new tool to investigate ultrafast non-equilibrium dynamics of the strongly correlated system.

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关键词

high harmonic generation,Mott-insulator,empirical scaling law,harmonic yields,scaling law,spin-charge effect,thermal fluctuation,ultrafast nonequilibrium dynamics,strongly correlated system,Ca2RuO4

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