Barrett Wells
Faculty Barrett Wells Ph.D., Assistant Professor of Physics Research Group Affiliation:
Condensed Matter Physics
University of Connecticut
2152 Hillside Road, U-3046
Storrs, CT 06269-3046
Room No: BSPG40B
Phone: (860) 486 0444
Fax: (860) 486 3346

My research projects involve the creation and characterization of interesting and useful materials primarily to understand their innate physics. Current projects include studying the effects of adding highly mobile dopants to superconducting oxides and related materials. Adding such dopants to materials with strongly correlated electrons tends to promote phase separation, sometimes at large length scales. We also grow oxide films in order to study how material properties differ in films versus bulk samples of the same compound. Films can be different for many reasons including strain, the lower dimensionality (2D versus 3D), and the constraint that a film must remain locked in contact with the substrate upon which it is grown. Understanding such effects in extremely thin films and other nanoscale materials is at the heart of nanoscience. These films are grown right here at UConn in our Pulsed Laser Deposition chamber.

In order to study these materials we employ a wide range of techniques. At UConn we characterize our samples crystal structure with x-ray diffraction, examine magnetic behavior using a SQUID magnetometer, map band structure and electronic properties using photo emission spectroscopy, and probe the electronic transport with direct conductivity measurements.

We also travel nationally and internationally to perform experiments at large experimental facilities; facilities that are too large for any one university to own. Examples include traveling to Brookhaven National Laboratory to perform x-ray experiments at the National Synchrotron Light Source, traveling to the National Institute of Standards and Technology in Washington or similar facilities in Switzerland or Germany to conduct neutron scattering experiments, and also we conduct muon spin rotation studies at the Paul Scherer Institute in Villigen, Switzerland.

I am always looking for excellent new students who would like to explore the frontiers of knowledge, the fascinating behavior of electrons when they interact strongly with other electrons, unique magnetic systems, and the science underlying nanotechnology.

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