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Research Abstracts Online
January 2010 - March 2011

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University of Minnesota Twin Cities
College of Science and Engineering
School of Physics and Astronomy

PI: Oriol T. Valls, Fellow

Numerical Studies on Superconducting Proximity Effects and on Supersolid Phenomena in Solid He

These researchers are continuing their ongoing research program in the following two areas: proximity effects in heterostructures, particularly those involving superconductors and ferromagnets; and superfluid hydrodynamics, dynamics of dislocations, and related phenomena in supersolids. In the first area, the researchers study the behavior of high-quality multilayer and superlattice nanostructures comprised of superconducting and non-superconducting (particularly ferromagnetic) materials, using numerical methods they have developed to solve the exact microscopic equations for such systems. In the second, they numerically study the hydrodynamics of superfluids in confined geometries with its implication for "supersolid” phenomena, and, using numerical techniques, the dynamics of dislocations and grain boundaries as it relates to supersolid phenomena in solid 4He.

Group Members

Paul Barsic, Arete Associates, Arlington, Virginia
Brian T. Benton, Undergraduate Student
Matthew S. Bryan, Undergraduate Student
Klaus Halterman, China Lake Research Center, China Lake, California
Chien-Te Wu, Graduate Student