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<div class="moz-text-html" lang="x-western"> <tt>Dear
all, </tt><br>
<br>
<tt> welcome to today's physics colloquium, </tt> <br>
<br>
<tt> Friday 20 May, at 10:15 in FYS1 Speaker:**Ari
Harju, Aalto University*** </tt> <br>
<tt> Title: **</tt><strong></strong><tt>*</tt><strong></strong><tt>
</tt><strong>Quantum dots and wires in graphene</strong><tt>
****</tt> <small><small><small><small><tt><span
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Abstract:</tt> <br>
<br>
Graphene, the panacea for most technological ills, is
also a new flatland of two-dimensional science. The
electronic properties differ from the two-dimensional
electron gas in semiconductors, and new physical
phenomena are expected. In both cases, the
dimensionality can be further reduced, forming
structures known as quantum wires and dots. In this
talk, I will show experimental and theoretical results
for graphene quantum dots on an Iridium substrate, down
to a level where the theoretical wave functions can be
used to model the scanning tunneling spectroscopy data.
In addition, a way to form graphene quantum wires with
stable edges is proposed, based on partial
(de)hydrogenation of graphene on silicon dioxide.<br>
<tt><br>
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Best regards,<br>
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<p class="MsoNormal" style="text-align: justify;">Kari
Eskola and Ilari Maasilta </p>
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