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arXiv · 2412.03777

Signatures of Floquet Engineering in the proximal Kitaev Quantum Spin Liquid H$_3$LiIr$_2$O$_6$ by tr-RIXS

Jungho Kim·Tae-Kyu Choi·Edward Mercer·Liam T. Schmidt·Jaeku Park·Sang-Youn Park·Dogeun Jang·Seo Hyoung Chang·Ayman Said·Sae Hwan Chun·Kyeong Jun Lee·Sang Wook Lee·Hyunjeong Jeong·Hyeonhui Jeong·Chanhyeon Lee·Kwang-Yong Choi·Faranak Bahrami·Fazel Tafti·Martin Claassen·Alberto de la Torre
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Abstract

We present the first circularly polarized Floquet engineering time-resolved Resonant Inelastic X-ray Scattering (tr-RIXS) experiment in H$_3$LiIr$_2$O$_6$, an iridium-based Kitaev system. Our calculations and experimental results are consistent with the modification of the low energy magnetic excitations in H$_3$LiIr$_2$O$_6$ only during illumination by the laser pulse, consistent with the Floquet engineering of the exchange interactions. However, the penetration length mismatch between the X-ray probe and laser pump and the intrinsic complexity of Kitaev magnets prevented us from unequivocally extracting towards which ground H$_3$LiIr$_2$O$_6$ was driven. We outline possible solutions to these challenges for Floquet stabilization and observation of the Kitaev Quantum Spin Liquid limit by RIXS.

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Jungho Kim, Tae-Kyu Choi, Edward Mercer, Liam T. Schmidt, Jaeku Park, Sang-Youn Park, Dogeun Jang, Seo Hyoung Chang, Ayman Said, Sae Hwan Chun, Kyeong Jun Lee, Sang Wook Lee, Hyunjeong Jeong, Hyeonhui Jeong, Chanhyeon Lee, Kwang-Yong Choi, Faranak Bahrami, Fazel Tafti, Martin Claassen, Alberto de la Torre. 2024-12-04. Signatures of Floquet Engineering in the proximal Kitaev Quantum Spin Liquid H$_3$LiIr$_2$O$_6$ by tr-RIXS. https://doi.org/10.1364/ome.550741

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