Investigating and fine-tuning the properties of ‘magic’ graphene
The two graphene layers are twisted relative to one another by the magic angle of approximately 1.1°. Depending on how many electrons a single cell is filled with, the graphene exhibits different electrical and magnetic properties. Measurements can be made using the oscillating tip of an atomic force microscope. The green surface is doped with an excess of electrons, while the red surface is underdoped. Polarized circular currents are induced by the magnetic field. Credit: Department of Physics, University of Basel
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