User Profile

Profile

Professor David Bowler

Telephone Extension:

37 229

Email:

david.bowler@ucl.ac.uk

Office/Location:

4C2

Research Interests:

Modelling bismuth nanolines on Si(001)

Electronic structure of nanolines on surfaces

Development of the Conquest linear scaling DFT code

Development of the correlated electron-ion dynamics (CEID) formalism

Interaction with experiments

Biography

Biography:

B.A.(Hons) from Cambridge University (1991)
D. Phil from Oxford University (1997)
Post-doctoral research at Keele University and UCL (1997-1999)
EPSRC and Royal Society Fellowships at UCL (1999-present)
Reader at UCL (2005-present)

External positions held:

Member of the Thomas Young Centre, the London Centre for the Theory and Simulation of Materials

Associate PI for MANA

Atomistic Computer Simulations: A Practical Guide

Research

Research:

Atomic and electronic structure of nanowires; electronic structure calculations; development of novel techniques; linear scaling DFT; interaction with surface science experiments.

The electronic charge density for a “hut cluster” of germanium on Si(001) (colour shows height). This feature forms due to stress between Ge and Si during epitaxial growth, and required 23,000 atoms in the calculation, which used the linear-scaling Conquest code (developed at UCL and NIMS, Japan) run on the Earth Simulator in Yokohama, Japan. Conquest solves the Schrodinger equation for the electrons in the system using an approach called Density Functional Theory. The hut cluster system may have applications as quantum dots or in nanoelectronics.