Home
RESEARCH
Dynamics of surface excitations
Surface nanostructures
Variational embedding
PUBLICATIONS
Journal Articles
Abstracts
TEACHING
PH20017
PH30025
PH30055
MA40044
MA40059
Dr. Simon Crampin
Department of Physics
University of Bath
Bath, BA2 7AY
United Kingdom
|
Tel: +44-(0)1225-384808
Fax: +44-(0)1225-386110
|
Office: WH 3.41
|
|
|
The goal of my research is to develop a quantitative understanding of the
stationary states and dynamic properties of electrons at surfaces, interfaces,
and nanostructures. This work involves new theoretical
concepts and techniques, simple models to elucidate basic physics,
and computational work to accurately solve the equations of quantum theory.
Current topics of interests include:
|
|
![](pics/cross.gif) |
Dynamics of surface excitations |
|
I study electronic states at metal surfaces, with a focus on the dynamics
of excitations in surface bands whose femtosecond lifetimes reveal a wealth
of key quantum physics, such as electron-electron scattering, screening,
interactions with lattice vibrations. A particular focus is lifetime signatures
in scanning tunneling spectroscopy, using ab-initio DFT codes,
Green functions scattering models and many-body GW theory.
|
|
Surface nanostructures
|
|
|
Nanoscale structures occupy the regime between atomic-like systems and
extended solids, exhibiting strong interplay between structural dimensions
and physical properties and with it the potential for novel behaviour. I am
interested in the quantum physics of supported nanostructures using
electronic structure methods to study the consequences of
quantum confinement, substrate
coupling and the use of nanostructures as quantum laboratories.
|
|
|
![](pics/cross.gif) |
Variational embedding |
|
I am interested in the development and application of variational embedding
methods for electronic structure problems, including quantum confined systems,
surfaces coupled to extended substrates, and for studying transport through
nanostructures. I am also interested in the extension of variational
embedding theory to the equations of relativistic quantum theory.
|
|
|