Andrea Damascelli

(604) 822-4551
Professor / SBQMI Scientific Director
Physics & Astronomy
The Brimacombe Building
461A - 2355 East Mall
Vancouver, BC V6T 1Z4

The frontier of modern solid state physics lies in understanding the electronic properties of those complex systems in which the valence electrons self-organize into novel ground states substantially different from those of conventional metals and insulators. Electron correlations, in concert with electron-phonon interactions, can give rise to a large variety of spectacular phenomena, such as Mott- Hubbard insulating behavior, unconventional and/or high-temperature superconductivity, heavy fermion and Kondo-insulating behavior, Peierls and spin-Peierls instabilities, spin-charge separation and spin-gap phenomena, and colossal magneto-resistance. In this context, in addition to the more traditional work performed on high-quality single crystals, over the last few years spectacular results have been reported on specifically fabricated nanostructures. To address the appropriateness of the current approaches in the quantum theory of solids and for the development of suitable microscopic models, it is necessary to investigate the elementary excitations of these novel complex systems, as they reflect the interplay between the low-energy degrees of freedom and determine macroscopic physical properties such as electrical resistivity, magnetic susceptibility and specific heat. The research activity of the group will then focus on the study of novel complex systems (both single crystals and one and two-dimensional nanostructures) by photoelectron spectroscopies and in particular angle-resolved photoelectron spectroscopy (so called ARPES). Angle-resolved photoemission spectroscopy experiments will be peformed on the state-of-the-art ARPES apparatus being developed at UBC, as well as at facilities such as the Canadian Light Source, the Stanford Synchrotron Radiation Laboratory, the Advance Light Source, and Elettra, where state of the art photoemission-dedicated beam lines are available or will be available in the very near future. These synchrotron experiments would be necessary for studies that require a continuous photon energy spectrum, control of the light polarization, spin sensitivity, specific experimental geometry, and small spot sizes.

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Recent Publications

Title Publication Authors Year
From Mott Insulator to Overdoped SC: Evolution of the Electronic Structure of Cuprates Studied by ARPES Cornell University Condensed Matter Damascelli A, Lu DH, Shen ZX 2001