Devices and Data Devices Dual-gated suspended graphene Ripples in suspended graphene Suspended graphene with electrodes hBN-encapsulated black phosphorus hBN-encapsulated carbon nanotube device with 0-D contact Data Tetrlayer graphene R(n, D) at B=2T Tetralayer graphene R(n, D) at B=0 Trilayer graphene R(B, D) at n=0 Carbon nanotube supercurrent transistor