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6 papers · 2 filters
Correlation between structure and electrical transport in ion-irradiated graphene grown on Cu foils
Grant Buchowicz, Peter R. Stone, Jeremy T. Robinson +3
Graphene grown by chemical vapor deposition and supported on SiO2 and sapphire substrates was studied following controlled introduction of defects induced by 35 keV carbon ion irra…
High growth rate 4H-SiC epitaxial growth using dichlorosilane in a hot-wall CVD reactor
Iftekhar Chowdhury, MVS Chandrasekhar, Paul B Klein +2
Thick, high quality 4H-SiC epilayers have been grown in a vertical hot-wall chemical vapor deposition system at a high growth rate on (0001) 80 off-axis substrates. We discuss the…
Intrinsic magnetism at silicon surfaces
Steven C. Erwin, Franz J. Himpsel
It has been a long-standing goal to create magnetism in a nonmagnetic material by manipulating its structure at the nanometer scale. This idea may be realized in graphitic carbon:…
Morphology Characterization of Argon-Mediated Epitaxial Graphene on C-face SiC
Joseph L. Tedesco, Glenn G. Jernigan, James C. Culbertson +10
Epitaxial graphene layers were grown on the C-face of 4H- and 6H-SiC using an argon-mediated growth process. Variations in growth temperature and pressure were found to dramaticall…
Ferroelectricity in strained CaSrTiO from first principles
Christopher R. Ashman, C. Stephen Hellberg, Samed Halilov
We present a density functional theory investigation of strained CaSrTiO. We have determined the structure and polarization for a number of arrangements of Ca a…
Sonic Gradient Index Lens for Aqueous Applications
Theodore P. Martin, Michael Nicholas, Gregory J. Orris +3
We study the acoustic scattering properties of a phononic crystal designed to behave as a gradient index lens in water, both experimentally and theoretically. The gradient index le…