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Infrared photoresistance as a sensitive probe of electronic transport in twisted bilayer graphene

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Hubmann, Stefan ; Di Battista, Giorgio ; Dmitriev, Ivan A. ; Watanabe, Kenji ; Taniguchi, T. ; Efetov, D. K. ; Ganichev, Sergey D.
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Date of publication of this fulltext: 24 Jan 2023 08:01


We report on observation of the infrared photoresistance of twisted bilayer graphene (tBLG) under continuous quantum cascade laser illumination at a frequency of 57.1 THz. The photoresistance shows an intricate sign alternating behavior under variations of temperature and back gate voltage, and exhibits giant resonance-like enhancements at certain gate voltages. The structure of the photoresponse ...


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