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<div><font face="Arial" size="+1" color="#000000">Seminar
on</font></div>
<div><font face="Arial" size="+1" color="#000000"><b>Modern Optics and
Spectroscopy</b></font></div>
<div><font face="Arial" size="+1" color="#000000"><b><br>
<br>
</b></font></div>
<div><font face="Arial" size="+1" color="#000000"><b>Pablo
Jarrillo-Herrero</b>, Columbia University</font></div>
<div><font face="Arial" size="+1" color="#000000"><br></font></div>
<div><font face="Arial" size="+1" color="#000000"><i><b>Low
temperature electronic transport properties of
graphene</b></i></font></div>
<div><font face="Arial" size="+1" color="#000000"><i><b><br>
</b></i>November 7, 2006</font></div>
<div><font face="Arial" size="+1" color="#000000"><br>
12:00 noon - 1:00 p.m.</font></div>
<div><font face="Arial" size="+1" color="#000000">Grier Room
34-401<br>
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<b>Abstract:</b></font><br>
<font face="Arial" size="+1" color="#000000"><b></b></font></div>
<div><font size="+1">Abstract:</font></div>
<div><font size="+1">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.</font></div>
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