
Michael BedzykProfessor, joint with Materials Science PhD, State University of New York at Albany, 1982 Fellow, American Physical Society 1994 B. E. Warren Diffraction Physics Award, American Crystallographic Association Bedzyk Research Page Professor Bedzyk's research centers on the development of novel x-ray probes and their application to the characterization of surface, interface, and thin-film structures with atomic resolution. He conducts his key experiments at synchrotron x-ray facilities, and his routine experiments at an in-house rotating x-ray anode source. In addition to using conventional x-ray scattering and spectroscopy techniques, Professor Bedzyk has developed a number of methods for generating x-ray standing waves with differing characteristic length scales. He uses these periodic x-ray probes to pinpoint the lattice location of adsorbate atoms on crystalline surfaces, to measure strain within epitaxially-grown semiconductor and ferroelectric thin films, and to locate heavy atoms within ultrathin organic films. Using a state-of-the-art surface-science facility at the Advanced Photon Source at Argonne National Laboratory, Professor Bedzyk performs in-situ analysis of surface structures and phase transformations of MBE-grown ordered atomic monolayers on semiconductor and complex oxide surfaces. He also uses x-ray standing waves, high-resolution x-ray diffraction, and x-ray absorption spectroscopy for structural characterization of buried strained-layer semiconductor heterostructures, ferroelectric thin films, and the water/crystalline interface. Selected Publications H. Cheng, K. Zhang, J. A. Libera, M. Olivera de la Cruz and M. J. Bedzyk Polynucleotide Adsorption to Negatively Charged Surfaces in Divalent Salt Solutions Biophys. J. 90, 1164 (2006) C.-Y. Kim, J. W. Elam, M. J. Pellin, D. K. Goswami, S. T. Christensen, M. C. Hersam, P. C. Stair, and M. J. Bedzyk Imaging of Atomic Layer Deposited (ALD) Tungsten Monolayers on a-TiO2(110) by X-Ray Standing Wave Fourier Inversion J. Phys. Chem. B 110, 12616 (2006) D. M. Goodner, D. L. Marasco, A. A. Escuadro, et al. X-Ray Standing Wave Investigation of Submonolayer Barium and Strontium Surface Phases on Si(001) Phys. Rev. B71, 165426 (2005) X. G. Liu, Y. Zhang, D. K. Goswami DK, et al. The Controlled Evolution of a Polymer Single Crystal Science 307, 1763 (2005) |