[f(k)] Colloquium Ari Harju today 10:15 FYS 1

[Ilari Maasilta]

Dear all,

welcome to today's physics colloquium,

Friday 20 May, at 10:15 in FYS1 Speaker:**Ari Harju, Aalto University***
Title:    ********Quantum dots and wires in graphene*****

Abstract:

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.



Best regards,

Kari Eskola and Ilari Maasilta

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