Physics and Chemistry Joint Research Seminar
Structure and ultra-fast diffusion of cyclooctatetraene on Cu(111)

As part of the School of Science and Technology's Physics and Chemistry Joint Research Seminar Series, Dr Nadav Avidor, Herchel Smith Postdoctoral Fellow Cavendish Laboratory, University of Cambridge presents:Structure and ultra-fast diffusion of cyclooctatetraene on Cu(111).
- From: Wednesday 31 October 2018, 1 pm
- To: Wednesday 31 October 2018, 2 pm
- Location: 015, CELS, Nottingham Trent University, Clifton Campus, Clifton Lane, Nottingham, NG11 8NS
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Event details
As part of the School of Science and Technology's Physics and Chemistry Joint Research Seminar Series, Dr Nadav Avidor, Herchel Smith Postdoctoral Fellow Cavendish Laboratory, University of Cambridge presents:Structure and ultra-fast diffusion of cyclooctatetraene on Cu(111).
Abstract
Helium Spin Echo spectroscopy enables us to ‘watch’ atomic motion at surfaces in reciprocal space and correlation time - on the pico to nano second time scale.[1] The technique, which is complementary to imaging techniques both in mechanism (spectroscopy vs microscopy) and in the regime of experimental conditions (angstroms-picoseconds vs angstroms sub-seconds), provides us the means to study motion at elevated temperatures where degrees of motion are not frozen.
In my talk, I will briefly explain how helium spin-echo spectroscopy works, and present a recent study where our measurements suggest that Cyclooctatetraene diffuses on Cu(111) with two different mechanisms, suggesting that two different conformations co-exist at the surface. I will also present recent results from the diffusion of Anthraquinone at Cu(111), and discuss current challenges and future opportunities offered by the technique.
[1] Alexandrowicz, G. and Jardine, A.P., 2007. Helium spin-echo spectroscopy: studying surface dynamics with ultra-high-energy resolution. Journal of Physics: Condensed Matter, 19(30), p.305001.
All Welcome
Hosted by Dr Ian Shuttleworth
Location details
Room/Building:
Address:
Clifton Campus
Clifton Lane
Nottingham
NG11 8NS
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