Surface diffusion on the atomic scale

Add to your list(s) Download to your calendar using vCal

• Graznya Antczak, Department of Physics, University of Wroclaw, Poland
• Thursday 26 January 2012, 16:00-17:00
• Mott Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Stephen Walley.

How do metal atoms diffuse over a surface? We have carried out extensive studies with the field ion microscope, and by determining the distribution of atom displacements over the surface we are able to deduce the nature of the jumps in the diffusion process. From these studies it appears that even at relatively low temperatures, diffusion occurs preferentially by longer jumps rather than by nearest-neighbor transitions. How do organic molecules move over a surface? I will present a study of the diffusion of phthalocyanine on the silver (100) surface in the STM . I will discuss the importance of the chemical identity of the central atom of pthalocyanine for the thermal motion of quasi-isolated molecules, the ratio of translational to rotational transitions, and adsorption geometry.

This talk is part of the Physics and Chemistry of Solids Group series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Mott Seminar Room, Cavendish Laboratory, Department of Physics
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Physics and Chemistry of Solids Group
• School of Physical Sciences
• Thin Film Magnetic Talks

Note that ex-directory lists are not shown.