[MOS] November 7, 2006

[Zina Queen]

Seminar on
Modern Optics and Spectroscopy


Pablo Jarrillo-Herrero, Columbia University

Low temperature electronic transport properties of graphene

November 7, 2006

12:00 noon - 1:00 p.m.
Grier Room 34-401




Abstract:

Abstract:
Graphene, a single sheet of graphite, is a two-dimensional material 
which has been long-studied theoretically, but only recently become 
available to experimentalists. Recent experiments have shown that the 
electronic properties of graphene are even more remarkable than 
previously thought. In my talk I will describe the fabrication and 
characterization of graphene devices, and introduce their basic 
electronic properties. I will then focus on the fundamental aspects 
of quantum electronic transport through graphene, which have led, for 
example, to the discovery of unusual quantizations of the Hall effect 
or the so-called "minimum conductivity" problem. I will end by 
showing our recent experiments where we study induced 
superconductivity in graphene, an observation which elucidates on the 
quantum coherent properties of electrons in this novel 
two-dimensional electron gas.
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