Associate PI for MANA
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.
Teaching (3rd year electromagnetism PHAS3201); Supervising students (5 PhD, 1 MSc)