Extended Data Fig. 7: Quantum linear MR in Corbino devices.
From: Giant magnetoresistance of Dirac plasma in high-mobility graphene
ρNP(B) measured for one of our Corbino-disk devices at different T (colour-coded). The contact resistance was about 0.1 kOhm (measured in the limit of high n and assumed to change little near the NP). Black line: guide to the eye with the slope 4.8 kΩ T−1. Insert: false colour micrograph of the device. Green, hBN on top of graphene; gold, metallic contacts; purple, polymer bridges over the outer ring contact, which are required for the metallization to reach the inner contact.
