Figure 5
From: Batch-fabricated high-performance graphene Hall elements

Temperature characteristics of graphene Hall elements and comparison with commercialized Hall elements supplied by Asahi Kasei Microdevices (AKM) Corporation.
(a) Temperature dependent carrier density and Hall mobility of a typical GHE. Carrier mobility was retrieved under B = 1 T. (b) Temperature dependent Hall voltage of graphene (green spheres) and GaAs (blue stars) Hall elements in voltage mode. The voltage supplies are 2 V and 6 V and the magnetic fields are 300 mT and 50 mT for graphene and GaAs Hall elements respectively. The specification for the commercial AKM GaAs Hall element is HG-106C-2U.