• Influence of Quantum Size Effects on Island Coarsening 

    Jeffrey, C. A.; Conrad, Edward H.; Feng, Rui; Hupalo, M.; Kim, Chinkyo; Ryan, P. J.; Miceli, Paul F.; Tringides, M. C. (American Physical Society, 2006-03)
    Surface x-ray scattering and scanning-tunneling microscopy experiments reveal novel coarsening behavior of Pb nanocrystals grown on Si 111 - 7 7 . It is found that quantum size effects lead to the breakdown of the ...
  • Motional Coherence in Fluid Phospholipid Membranes 

    Rheinstädter, Maikel C.; Das, Jhuma; Flenner, Elijah J.; Brüning, Beate; Seydel, Tilo; Kosztin, Ioan (American Physical Society, 2008-12)
    We report a high energy-resolution neutron backscattering study, combined with in situ diffraction, to investigate slow molecular motions on nanosecond time scales in the fluid phase of phospholipid bilayers of ...
  • Nanoclustering of vacancies in thin metal films revealed by x-ray diffuse scattering 

    Kim, Chinkyo; Feng, Rui; Conrad, Edward H.; Miceli, Paul F. (American Institute of Physics, 2007-08)
    The authors report the incorporation of unexpectedly large vacancy clusters into homoepitaxial Ag(001) films. These results, which are for a simple noble metal system, have important implications for understanding the ...
  • Nearly Space-Filling Fractal Networks of Carbon Nanopores 

    Pfeifer, Peter; Ehrburger-Dolle, F.; Rieker, T. P.; González, M. T.; Hoffman, W. P.; Molina-Sabio, M.; Rodríguez-Reinoso, F.; Schmidt, P. W.; Voss, D. J. (American Physical Society, 2002-02)
    Small-angle x-ray scattering, nitrogen adsorption, and scanning tunneling microscopy show that a series of activated carbons host an extended fractal network of channels with dimension Dp = 2.8-3.0 (pore fractal), channel ...
  • Power-law fluctuations in phase-separated lipid membranes 

    Winter, R.; Gabke, A.; Czeslik, C.; Pfeifer, Peter (American Physical Society, 1999-12)
    The spatial structure of three binary lipid mixtures, prepared as multilamellar vesicles, was studied by small-angle neutron scattering. In the fluid-gel coexistence region, large- scale concentration fluctuations appear ...
  • Structural perfection in physisorbed films: A synchrotron x-ray diffraction study of xenon adsorbed on the Ag(111) surface 

    Dai, Pengcheng, 1963-; Angot, T.; Ehrlich, S. N.; Wang, S. -K.; Taub, Haskell (American Physical Society, 1994-01)
    Synchrotron x-ray scattering has been used to investigate the structure and growth of xenon films physisorbed on the Ag(111) surface. For growth under quasiequilibrium conditions, the bulk Xe-Xe spacing is reached at ...
  • Studies of the structure and growth mode of dotriacontane films by synchrotron x-ray scattering and molecular dynamics simulations 

    Mo, Haiding, 1969-; Trogisch, S.; Taub, Haskell; Ehrlich, S. N.; Volkmann, Ulrich G.; Hansen, Flemming Y.; Pino, M. (Institute of Physics, 2004-07)
    We report on synchrotron x-ray scattering experiments and molecular dynamics simulations of the structure and growth mode of dotriacontane (n-C32H66 or C32) films adsorbed on Ag(111) and SiO2-coated Si(100) substrates. On ...
  • Subdiffusion and lateral diffusion coefficient of lipid atoms and molecules in phospholipid bilayers 

    Flenner, Elijah J.; Das, Jhuma; Rheinstädter, Maikel C.; Kosztin, Ioan (American Physical Society, 2009-01)
    We use a long, all-atom molecular-dynamics MD simulation combined with theoretical modeling to investigate the dynamics of selected lipid atoms and lipid molecules in a hydrated diyristoyl-phosphatidylcholine lipid ...
  • Synchrotron x-ray-diffraction study of the structure and growth of Xe films adsorbed on the Ag(111) surface 

    Dai, Pengcheng, 1963-; Wu, Z.; Angot, T.; Wang, S. -K.; Taub, Haskell (American Physical Society, 1999-06)
    Synchrotron x-ray scattering has been used to investigate the structure and growth of perhaps the simplest of all films: xenon physisorbed on the Ag(111) surface. High-resolution x-ray scans of the in-plane structure and ...
  • Temperature dependence of surface roughening during homoepitaxial growth on Cu(001) 

    Botez, Christian E. (Christian Emil) 1968-; Miceli, Paul F.; Stephens, P. W. (American Physical Society, 2001-09)
    X-ray scattering has been used to study the roughening of the Cu(001) surface during homoepitaxial growth, as a function of temperature. Between 370 and 160 K, the mean-square roughness σ2, obtained from specular reflectivity ...
  • Temperature-dependent vacancy formation during the growth of Cu on Cu(001) 

    Botez, Christian E. (Christian Emil) 1968-; Miceli, Paul F.; Stephens, P. W. (American Physical Society, 2002-11)
    X-ray diffraction measurements show that a large number of vacancies are incorporated in thin Cu films grown on Cu(001) at low temperatures. At any given deposition temperature between 110 and 160 K, the vacancy concentration ...
  • Thermal expansion of the Ag(111) surface measured by x-ray scattering 

    Botez, Christian E. (Christian Emil) 1968-; Elliot, W. C.; Miceli, Paul F.; Stephens, P. W. (American Physical Society, 2001-03)
    We have investigated the structure of the Ag(111) surface, for temperatures between 300 and 1100 K (90% of the bulk melting point), using synchrotron x-ray diffraction. Our data show no evidence of the anomalously large ...
  • Vacancy formation in homoepitaxially grown Ag films and its effect on surface morphology 

    Botez, Christian E. (Christian Emil) 1968-; Elliot, W. C.; Miceli, Paul F.; Stephens, P. W. (American Physical Society, 2002-08)
    Synchrotron x-ray diffraction was used to investigate the low-temperature homoepitaxial growth on Ag(001) and Ag(111) surfaces. For both orientations, the Ag films deposited at T=100K were observed to exhibit a 1% ...
  • Wetting-layer transformation for Pb nanocrystals grown on Si(111) 

    Feng, Rui; Conrad, Edward H.; Tringides, M. C.; Kim, Chinkyo; Miceli, Paul F. (American Institute of Physics, 2004-10)
    We present the results of in situ x-ray scattering experiments that investigate the growth of Pb nanocrystalline islands on Si(111). It is conclusively shown that the Pb nanocrystals do not reside on top of a Pb wetting ...
  • X-ray scattering from rotational disorder in epitaxial films: An unconventional mosaic crystal 

    Miceli, Paul F.; Palmstrom, C. J. (American Physical Society, 1995-02)
    Motivated by x-ray-scattering measurements performed on ErAs(001)/GaAs(001) and In0.7Ga0.3P(001)/GaAs(001), we present a model that explains the origin of a narrow peak and diffuse scattering, which are frequently observed ...
  • X-ray-diffraction and scanning-tunneling-microscopy studies of a liquid-crystal film adsorbed on single-crystal graphite 

    Dai, Pengcheng, 1963-; Wang, S. -K.; Taub, Haskell; Buckley, J. E.; Ehrlich, S. N.; Larese, J. Z.; Binnig, Gerd, 1947-; Smith, D. P. E. (American Physical Society, 1993-03)
    Synchrotron x-ray-diffraction and scanning-tunneling-microscopy (STM) experiments reveal a new commensurate monolayer structure of 10CB (decylcyanobiphenyl) molecules adsorbed on the (0001) graphite surface. Our results ...