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  • Orientation dependence of shock-induced twinning and substructures in a copper bicrystal

    Publication
    Acta Materialia
    Cao, F.; Beyerlein, I. J.; Addessio, F. L.; Sencer, B. H.; Trujillo, C. P.; Cerreta, E. K.; Gray III, G. T.

    Shock recovery experiments have been conducted to assess the role of shock stress and orientation dependence on substructure evolution and deformation twinning of a [1 0 0]/ copper bicrystal.

  • Electronic structure of supelattice and twin in Ga doped ZnO measured by monochromated EELS

    Publication
    Microscopy and Microanalysis
    Chang, H.; Yoon, S.; Seong, T.; Yu, T.; Yuo, Y.; Ahn, J.

  • EELS color map of a magnetic device
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc.

    Legend

    Cu L at 931 eV (grey); O K at 532 eV (red); N K at 401 eV (light blue); Ti L at 456 eV (green); Co L at 779 eV (blue)

  • Plasmon peak position map going from diamond (yellow) to amorphous carbon (blue)

    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Dr. Jaco Oliver at NMMU, Port Elizabeth, South Africa Microscope courtesy of NMMU, Port Elizabeth, South Africa

    Analysis of the changes in local carbon structure caused by self-implantation of carbon into diamond and chemistry.

  • EELS color map of a Pt/Au catalyst nanoparticle
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Professor Gianluigi Botton at CCEM, Hamilton, ON, Canada Microscope courtesy of CCEM, Hamilton, ON, Canada Acknowledgement to Dr. Andreas Korinek at CCEM for helping set up microscope for experiment.

    EELS data taken using a probe and image-corrected FEI Titan TEM/STEM microscope equipped with X-FEG emission gun and a fully loaded GIF Quantum® ERS system. Au M4,5-edges at 2206 eV (red) and Pt M4,5-edges at 2206 eV (red).
    Methods

  • EELS color map of a Pt/Fe catalyst nanoparticle
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Professor Gianluigi Botton at CCEM, Hamilton, ON, Canada Microscope courtesy of CCEM, Hamilton, ON, Canada Acknowledgement to Dr. M. Bugnet at CCEM for helping set up microscope for experiment.

    Pt/Fe nanocatalysts are among the most promising candidates for accelerating oxygen reduction reaction occurring at the cathode in a proton exchange membrane fuel cell.

  • Atomic level EELS color map of a Pt/Ru catalyst nanoparticle
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Professor Gianluigi Botton at CCEM, Hamilton, ON, Canada Microscope courtesy of CCEM, Hamilton ON, Canada Acknowledgement to Dr. Andreas Korinek at CCEM for helping set up microscope for experiment.

    Methods

  • Atomic Resolved EELS color map of GaAs/Ga2O3
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of University of Glasgow Microscope courtesy of Dr. Yan Xin at Florida State University, Tallahassee, FL Acknowledgement to Dr. Toshiro Aoki at Jeol USA (now at ASU) for helping set up microscope for experiment.

    Dumbbell structure of GaAs on left hand side of color map is clearly resolved, and Ga and As atomic columns are visible. Interface region shows presence of Ga2O monolayer responsible for keeping Fermi level unpinned, which allows the electronic device to be turned on or off.

  • Ultrafast giant atomic EELS color map across the SrTiO3/LaMnO4 interfaces
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose, CA Microscope courtesy of Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose, CA Acknowledgement to Dr. P. Rice and Dr. T. Topuria at IBM (Almaden) for helping set up microscope for experiment.

    Legend

    Green: Ti L at 456 eV; red: Sr L at 1940 eV; purple: La M at 832 eV; blue: Mn L at 640 eV

    Methods

  • Fast joint EELS/EDS color map across SrTiO3/LaFeO3/LaCuOx interfaces
    Media Image
    Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of by Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose CA Microscope courtesy of Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose CA Acknowledgements to Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose, CA for helping set up microscope for experiment.

    Methods

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