Andrew Preston
Research Scientist
Office: BNL, Room X1B. 631-344-5701
Email:
Website: http://preston.co.nz
Research Interests:
I am a member of the Novel Materials Laboratory, headed by Professor Kevin Smith.
My research is broadly aimed at determining the electronic structure of new and unusual condensed matter systems. Primarily, I use experimental techniques based on synchrotron based soft x-ray spectroscopy to extract band structure information from these novel systems. In particular I focus on the techniques of resonant x-ray emission spectroscopy (RXES) and angle resolved photoemission spectroscopy (ARPES).
I am also interested in the theoretical basis for the novel electronic structures found in these materials, and regularly use calculations based on the density functional theory and Hartree-Fock approximations in concert with my experimental work.
Selected papers:
- 02/12/09 Vibrational properties of rare-earth nitrides: Raman spectra and theory
- 11/19/08 Electronic properties of (Ga,Mn)N thin films with high Mn content
- 11/06/08 Near-zero moment ferromagnetism in the semiconductor SmN
- 10/14/08 Band structure of ZnO from resonant x-ray emission spectroscopy
- 12/20/07 Comparison between experiment and calculated band structures for DyN and SmN
- 08/29/07 Ferromagnetic redshift of the optical gap in GdN
- 03/24/07 Photocurrent diffusion length in disordered GaN
- 06/20/06 Semiconducting ground state of GdN thin films
- 02/13/06 Photoconductivity in nanocrystalline GaN and amorphous GaON
Mailing address:
Andrew Preston
X1B NSLS, Building 725
Brookhaven National Lab
Upton, NY 11973 (map)
