My research interests lie in the
structural and electronic properties of metallic layers on a surface that
are less than two atoms in thickness. The area of nanoelectronics
seeks to understand how a few atoms might be placed to make electronic
devices whose dimensions are near the atomic size level. One important
characteristic which is important in
electronic devices is electrical
conductivity, which is very different for a few atoms than it is for bulk
materials. In the laboratory, I am setting up an electrical conductance
measurements and an electron diffraction measurement (RHEED, Reflective
High energy Electron Diffraction), so structural information and electronic
information can simultaneously be measured as the structures are made.
The next experiments with this system will be silver films deposited by
Molecular Beam Epitaxy onto a silicon surface held at 100K in ultrahigh
vacuum. In this system, there are some intriguing structural developments
due to quantum confinement of electrons in the metallic film.