Half integer quantum hall effect in is one of the most outstanding discovery in condensed matter in the second half of the twenty first century. The difference emerges from the unique electronic properties of graphene, which reveals
electron–hole degeneracy and vanishing carrier mass near the point of charge neutrality. This unique behaviour of electrons opens up for new application in carbon based electric and magnetic field-effect technology, for example, aplication in ballistic or metallic/semiconducting graphene ribbon devices and electric field effective spin transport devices using a spin-polarized edge state.
http://www.nature.com/nature/journal/v438/n7065/abs/nature04235.html
No comments:
Post a Comment