NIST Researchers Hear Puzzling New Physics from Graphene Quartet's Quantum Harmonies (5940498443)
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.
See also www.nist.gov/public_affairs/releases/graphene_quartet.cfm.
Credit: T. Schindler and K. Talbott/NIST
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