Tag Archive for 'Dirac fermion' | Sci.News

The most recognizable feature of graphene’s electronic spectrum is its Dirac point, around which interesting phenomena tend to cluster. At low temperatures, the intrinsic behavior in this regime is often obscured by charge inhomogeneity, but thermal excitations can overcome the disorder at elevated temperatures and create an electron-hole plasma of Dirac fermions. The Dirac plasma has been found to exhibit unusual properties, including quantum-critical scattering and hydrodynamic flow. However, little is known about the plasma’s behavior in magnetic fields. Xin et al. report magnetotransport in this quantum-critical regime. Image credit: University of Manchester.

Physicists Discover Giant Magnetoresistance in Graphene

Apr 12, 2023 by News Staff

Record-high magnetoresistance appears in graphene under ambient conditions, according to new research led by the University of Manchester. The most recognizable...