Thursday 17 January 2008
from 15:15
to 16:15 at
Klein Auditorium
Speaker :
Professor A .V. Balatsky (LANL)
Abstract :
Recently a new single layer material --
graphene has been discovered. This is a material
where Dirac points in the fermionic spectrum lead
to a very unusual properties, such as transport
properties and impurity states. I will argue that
these properties are not unique to graphene and in
fact are a direct consequence of Dirac spectrum in
fermionic excitation sector. Strong similarities
with d-wave superconductors, superfluid 3He and with
other materials exhibiting Dirac electronic spectrum
are suggestive and offer a unifying perspective.
I will argue that this discovery signifies the emergence
of a new class of materials, that can be
called **Dirac Materials**, the class where nontirivial
properties emerge as a direct consequence of Dirac spectrum
of excitations.
