RESEARCH INTERESTS

The goal of my current research program has been to make significant theoretical advances con­cerning the electrodynamic behavior of current-carrying superconductors subjected to mag­netic fields.  Recently I have been giving greatest attention to the high-temperature superconduc­tors, first discovered in 1986.  Problems that I am particularly interested in include flux pinning, critical currents, flux flow, ac losses, noise, spiral and intersecting vortices, instabilities, surface and interface effects, proximity effects, and two- and three-dimensional arrays of Josephson junctions.  Although my focus is generally on the solution of fundamental problems, I always have been strongly motivated by the fact that a solidly based theoretical understanding of the above interrelated subjects is needed to make the most effective use of superconductors in various applications, both large-scale (e.g., wire and tapes for high-field magnets and power transmission lines) and small-scale (e.g., filters, resonators, and Josephson devices for use in sensitive detectors and logic devices.)