Wednesday, April 7, 2010, 1:00 pm — Conference Room, Bldg. 480
Recently a new single-layer material--graphene--has been discovered.
This is a material where Dirac points in the fermionic spectrum lead
to very unusual properties, including transport and impurity states.
I will argue that these properties are not unique to graphene and in
fact are a direct consequence of the Dirac spectrum in the fermionic
excitation sector. Strong similarities with d-wave superconductors,
superfluid 3He, p-wave superconductors and other materials with
similar energy spectra hint at a unifying perspective. I will argue
that this discovery signifies the emergence of a new class of Dirac
materials, in which nontirivial properties emerge as a direct
consequence of Dirac spectrum of excitations. I will discuss some
observable effects, such as Kondo effect and inelastic tunneling
spectroscopy, that differentiate Dirac Materials from other classes.
Hosted by: Ivan Bozovic
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