Figure 4
From: Batch-fabricated high-performance graphene Hall elements

Temperature performance of GHE.
(a) Hall voltage versus magnetic field in current mode (with a drive current of 200 μA) and over a wide temperature range from 1.8 K to 400 K. (b) The corresponding current-related sensitivities at various temperatures and (c) the related temperature coefficients. (d) Hall voltage versus magnetic field working in voltage mode (with a drive voltage of 2 V) and over a wide temperature range from 1.8 K to 400 K. (e) The corresponding voltage-related sensitivities at various temperatures and (f) the related temperature coefficients.