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SUMMARY:Quantum Dots and Dislocations: Dynamics of Materials Defects - Ire
 ne Fonseca\, Carnegie Mellon University
DTSTART:20161201T150000Z
DTEND:20161201T160000Z
UID:TALK69119@talks.cam.ac.uk
CONTACT:Rachel Furner
DESCRIPTION:The formation and assembly patterns of quantum dots have a sig
 nificant impact on the optoelectronic properties of semiconductors. We wil
 l address short time existence for a surface diffusion evolution equation 
 with curvature regularization in the context of epitaxially strained three
 -dimensional films. We will discuss optimal faceted shapes of quantum dots
  and wetting in the case in which there are a non-vanishing crystallograph
 ic miscut and a lattice incompatibility between the film and the substrate
 . The nucleation of misfit dislocations will be analyzed. 
LOCATION:MR11  Centre for Mathematical Sciences
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