If at first you don't succeed - add more dimensions
If at first you don't succeed - add more dimensions
- Event time: 1:00pm
- Event date: 23rd June 2003
- Speaker: Professor Malcolm McMahon (School of Physics & Astronomy, University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
In this talk I will provide a brief introduction to different classes of incommensurate (or aperiodic) crystal structures, and the effect that the incommensuration has on their diffraction patterns. I will then introduce and describe the elegant methods that have been developed to determine and analyse the structures of such crystals. In particular, I will describe the superspace formalism where structures that are aperiodic in 3-dimensional space are envisaged to be periodic in an n-dimensional superspace where n=4,5,6. Examples from some of our recent results will be used to illustrate the methods.
About Condensed Matter lunchtime seminars
This is a weekly series of informal talks given primarily by members of the institute of condensed matter and complex systems, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..