Welcome to the home page for the Electron Spectroscopy Group, a member of the Condensed Matter Physics and Materials Science Department at Brookhaven National Laboratory on Long Island, New York. The group employs two main techniques; angle resolved photoemission spectroscopy (ARPES), and infrared (IR) spectroscopy. The Electron Spectroscopy Group’s primary focus is on the electronic structure and dynamics of condensed matter systems. The group carries out studies on a range materials including strongly correlated systems and thin metallic films. A special emphasis is placed on studies of high-Tc superconductors and related materials. Some of these experiments are performed at the National Synchrotron Light Source.  The emphasis is on the study of the low-energy excitations and the nature of the interactions of the latter with their environment.  The group has also established a successful pulsed laser deposition facility for the study of thin films. Future plans involve studies of nanoscale systems and will involve close collaboration and work within the newly created Center for Functional Nanomaterials.

A brief survey of current research topics include:

• ARPES and IR on high-T_c cuprates and iron-based superconductors

• Charge ("stripe") order in the nickelates

• Correlated electron systems (intermetallics, etc.)

• Colossal magneto resistance in the manganates

• High-dielectric constant materials

• Quantum magnets

• Density-functional theory ab-initio calculations of electronic band structure and lattice dynamics of perovskites

Our experiments are typically performed on single crystal samples, many of which are grown and characterized at Brookhaven.  

Last Modified: Monday, May 16, 2011 01:27 PM

Please forward all questions about this site to: C. Homes