Low-Energy Electron Diffraction investigation of the clean, stepped Cu(511) surface

ORAL

Abstract

Results of a Low-Energy Electron Diffraction (LEED) investigation of the clean, stepped Cu(511) surface are reported for two different sets of experimental data. The results show a good match between experimental and theoretical beams for one experimental set, but not so good in the case of the second set, in which case the results presented are only preliminary. The origin of the disparity is attributed to the angle of incidence of the electron beam probing the Cu(511) surface. Ideally, the electron beam would hit the surface under normal incidence, a situation hard to control due to the existence of only one symmetry plane of the real structure, which, in turn, gets translated into only one symmetry plane in the reciprocal space. The uncertainty in the angle of incidence together with computational problems arose by the very small interlayer spacing of the stepped sample [K. Pussi, M. Caragiu, M. Lindroos, R.D. Diehl, Surf. Sci. 544 (2003), 35], make the investigation of this particular surface challenging.

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Authors

  • Christopher Lemon

    Ohio Northern University

  • Mellita Caragiu

    Ohio Northern University

  • Renee Diehl

    Pennsylvania State University

  • Kyung Yu

    University of Akron, Youngstown State University, Shady Side Academy, Westminster College, Nitronex Corporation, Durham, NC, AFRL,Wright-Patterson AFB, Ohio, University of Michigan, Ann Arbor, Department of Physics, The Ohio State University, Lunghwa University of Science and Technology, Eastern Michigan University, Wright State University, Michigan State University, Texas A\&M University and Princeton University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, Kettering University, Flint, MI, Pennsylvania State University, University of TN

  • Kyung Yu

    University of Akron, Youngstown State University, Shady Side Academy, Westminster College, Nitronex Corporation, Durham, NC, AFRL,Wright-Patterson AFB, Ohio, University of Michigan, Ann Arbor, Department of Physics, The Ohio State University, Lunghwa University of Science and Technology, Eastern Michigan University, Wright State University, Michigan State University, Texas A\&M University and Princeton University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, Kettering University, Flint, MI, Pennsylvania State University, University of TN

  • Kyung Yu

    University of Akron, Youngstown State University, Shady Side Academy, Westminster College, Nitronex Corporation, Durham, NC, AFRL,Wright-Patterson AFB, Ohio, University of Michigan, Ann Arbor, Department of Physics, The Ohio State University, Lunghwa University of Science and Technology, Eastern Michigan University, Wright State University, Michigan State University, Texas A\&M University and Princeton University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, Kettering University, Flint, MI, Pennsylvania State University, University of TN