Figure 3
From: Room temperature Co-doped manganite/graphene sensor operating at high pulsed magnetic fields
The magnetoresistance dependence on magnetic flux density at permanent magnetic field up to 2.35 T of single- and few-layer graphene at 300 K. The inset: Corbino disk configuration with graphene layer on top of Ag electrodes (orange) with the inner radius r1 = 0.7 mm, and the outer radius r2 = 2.3 mm. The current is passed through the disk-shaped area (white area) and the voltage difference is measured by application the magnetic field perpendicular to the surface.
