Study of carrier dynamics in strained graphene with giant pseudo-magnetic fields

Dong-Ho Kang; Hao Sun; Manlin Luo; Kunze Lu; Melvina Chen; Youngmin Kim; Yongduck Jung; Xuejiao Gao; Samuel Jior Parluhutan; Junyu Ge; See Wee Koh; David Giovanni; Tze Chien Sum; Qi Jie Wang; Hong Li; Donguk Nam

doi:10.1117/12.2608389

5 March 2022 Study of carrier dynamics in strained graphene with giant pseudo-magnetic fields

Dong-Ho Kang, Hao Sun, Manlin Luo, Kunze Lu, Melvina Chen, Youngmin Kim, Yongduck Jung, Xuejiao Gao, Samuel Jior Parluhutan, Junyu Ge, See Wee Koh, David Giovanni, Tze Chien Sum, Qi Jie Wang, Hong Li, Donguk Nam

Author Affiliations +

Proceedings Volume 12003, 2D Photonic Materials and Devices V; 1200308 (2022) https://doi.org/10.1117/12.2608389
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Pseudo-magnetic field in strained graphene has emerged as a promising route to allow observing intriguing physical phenomena that would be inaccessible with laboratory superconducting magnets. However, experimental observation of the impact of pseudo-magnetic field on optical and electrical properties of graphene has remained unknown. Here, using time-resolved infrared pump-probe spectroscopy, we provide unambiguous evidence of slow carrier dynamics enabled by a giant pseudo-magnetic field (~100 T) in periodically strained graphene. Our finding presents unforeseen opportunities towards harnessing the new physics of graphene in previously unachievable high magnetic field regimes.

Conference Presentation

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Dong-Ho Kang, Hao Sun, Manlin Luo, Kunze Lu, Melvina Chen, Youngmin Kim, Yongduck Jung, Xuejiao Gao, Samuel Jior Parluhutan, Junyu Ge, See Wee Koh, David Giovanni, Tze Chien Sum, Qi Jie Wang, Hong Li, and Donguk Nam "Study of carrier dynamics in strained graphene with giant pseudo-magnetic fields", Proc. SPIE 12003, 2D Photonic Materials and Devices V, 1200308 (5 March 2022); https://doi.org/10.1117/12.2608389

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