Extended Data Fig. 2: Optical images of device I during fabrication.
From: Tunable correlated Chern insulator and ferromagnetism in a moiré superlattice
a, ABC-TLG is identified by near-field infrared spectroscopy and isolated by atomic force microscope tip. b, ABC-TLG is encapsulated by hBN and etched into Hall bar geometry. c, Final device with metal contacts and top and bottom gates.
