Extended Data Fig. 1: Device and transport characterization.
From: Tunable interplay between light and heavy electrons in twisted trilayer graphene
a, Left panel: Optical microscope image of the device. The black points marked 1 (1.53°) and 2 (1.58°) are the approximate locations at which the compressibility measurements were carried out. Vxx denotes contacts used for the transport measurements. Right panel: topographic image obtained by measuring the electrostatic potential of the device using the scanning SET. b, Temperature-dependent longitudinal resistance Rxx measured between contacts marked by Vxx in a, showing superconductivity for both electron and hole dopings.
