Terahertz Photogalvanics in Twisted Bilayer Graphene Close to the Second Magic Angle

We report on the observation of photogalvanic effects in tBLG with a twist angle of 0.6°. We show that excitation of the tBLG bulk causes a photocurrent, whose sign and magnitude are controlled by the orientation of the radiation electric field and the photon helicity. The observed photocurrent prov...

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Veröffentlicht in:	Nano letters 2020-10, Vol.20 (10), p.7152-7158
Hauptverfasser:	Otteneder, Maximilian, Hubmann, Stefan, Lu, Xiaobo, Kozlov, Dmitry A, Golub, Leonid E, Watanabe, Kenji, Taniguchi, Takashi, Efetov, Dmitri K, Ganichev, Sergey D
Format:	Artikel
Sprache:	eng
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