Thursday, November 15, 2007, 1:30 pm — Small seminar room, Bldg. 510
The recent discovery of graphene (a single layer of graphite) has opened the way to bench-top studies of quasi-particles governed by quantum-relativistic dynamics - Dirac fermions. I will describe scanning tunneling spectroscopy measurements of graphene on graphite substrates that give access to the unusual properties of these quasi-particles. Our findings include direct evidence of their chiral nature and constant speed. When placed between two superconducting electrodes we find that the Dirac fermions can carry a supercurrent and exhibit a rich variety of phenomena characteristic of Josephson junctions.
Hosted by: Robert Konik
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