An outstanding candidate is sought for a program on correlating superconducting transport properties to grain boundary atomic structure and chemistry by combined Z-contrast microscopy and EELS, using thin films grown on bicrystal substrates and also wire samples. Based on recent success in using the structural unit model to explain the exponential decrease in critical current with increasing grain boundary misorientation, we anticipate this program will make substantial progress in understanding the link between grain boundary atomic structure and the macroscopic transport properties of thin films and wires. Successful candidates will be recent Ph.D. graduates in physics, metallurgy, or materials science with a sound background in the relevant materials issues and a burning ambition to develop a forefront area in materials physics. If this is you, send your resume and publication list to Dr. S.J. Pennycook, Corporate Fellow and Electron Microscopy Group Leader, Oak Ridge National Laboratory, Solid State Division, PO Box 2008, Oak Ridge TN 37831-6030. Prior experience using transmission electron microscopy is essential.
Positions are for one year initially, normally renewed for a second year and possibly a third.
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