Electron Energy Levels in Graphene (IMAGE)

National Institute of Standards and Technology (NIST)

Electron Energy Levels in Graphene

Caption

This artist's rendition illustrates the electron energy levels in graphene as revealed by a unique NIST instrument. Because of graphene’s properties, an electron in any given energy level (the wide, purple band) comprises four quantum states (the four rings), called a “quartet.” This quartet of levels split into different energies when immersed in a magnetic field. The two smaller bands on the outermost ring represent the further splitting of a graphene electronic state.

Credit

T. Schindler and K. Talbott/NIST

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