Electronic Structure of Graphene: Simple but Complex
DIPC Seminars
- Speaker
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TODAY: Andrew L. Walter
- When
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2011/09/13
14:00 - Place
- Donostia International Physics Center (DIPC).Paseo Manuel de Lardizabal, 4 (nearby the Facultad de Quimica), Donostia
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1\. Advanced Light Source (ALS), E. O. Lawrence Berkeley National
Laboratory, Berkeley, California 94720, USA.
2\. Department of Molecular Physics, Fritz-Haber-Institut der
Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
Interest in graphene appears endless at the moment, with most interest
related to the "simple" Dirac particle like electronic structure. On
the surface this simplicity would appear to make investigations into
the electronic structure less than exciting. On the contrary the
simple nature of the underlying electronic structure allows detailed
analysis of the quasi-particle, hybridization and substrate
interaction features observed in photoemission spectroscopy. This
allows for a new understanding of the physics behind photoemission,
and has resulted in the observation of new types of quasi-particle
bands. To this end angle resolved photoemission spectra obtained from
graphene on a range of substrates is presented and used to investigate
these interactions and reveal the underlying processes.