raymond roller gallium

• 

  Surface layering in liquid gallium: An X-ray reflectivity study

  1995925 · Surface layering in liquid gallium: An X-ray reflectivity study Phys Rev Lett. 1995 Sep 25;75 (13):2498-2501. doi: 10.1103/PhysRevLett.75.2498. Surface layering in liquid gallium: An X-ray reflectivity study

  view more
• 

  High resolution X-ray photoelectron spectroscopy of beta gallium …

  2008530 · Beta gallium oxide (100) films are epitaxially deposited on magnesium oxide (100) crystalline substrate. The high resolution X-ray photoelectron spectra suggest the presence of the density of states valence band region with oxygen deficiency out of the stoichiometry on the epitaxial crystalline beta gallium oxide films.

  view more
• 

  Auger and direct electron spectra in X-ray photoelectron …

  197311 · Abstract Auger and direct electron spectra from Zn, ZnO, Ga and Ga 2 O 3 have been studied with X-ray photoelectron spectroscopy (ESCA). The chemical shift between zinc electron binding energies in Zn and ZnO is very small, whereas the zinc Auger electron signals are separated by 4.3 eV. In gallium, the oxide and metal signals are …

  view more
• 

  X-ray study of the oxidation of liquid-gallium surfaces

  For the clean gallium surface, the x-ray reflectivity, shown in Fig. 1 as the dashed curve, follows the Fresnel theory of reflectivity from an ideally flat surface out to wavevector transfers q z ;2 Å21, with a quasi-Bragg peak at q z ;2.4 Å21 due to surface-induced atomic layering.10,12 Upon exposure to 206 L of oxygen, the reflectivity ...

  view more
• 

  Study of liquid gallium as a function of pressure and …

  2014730 · The volume change of liquid and solid gallium has been studied as a function of pressure and temperature up to 3.02 GPa at 300 K and up to 3.63 GPa at 330 K using synchrotron x-ray microtomography combined with energy dispersive x-ray diffraction techniques. Two sets of directly measured P-V data at 300 K and 330 K were obtained …

  view more
• 

  Welcome | Industrial & Mining Services (I.M.S.)

  200111 · Raman scattering and x-ray-absorption spectroscopy in gallium nitride under high pressure Phys Rev B Condens Matter. 1992 Jan 1;45 (1):83-89. doi: 10.1103/physrevb.45.83. Raman scattering and x-ray-absorption spectroscopy in gallium nitride under high pressure

  view more
• 

  Two-dimensional gallium nitride realized via graphene

  2016829 · A method to synthesize 2D layers of gallium nitride on SiC is reported. Epitaxial graphene preliminarily grown on SiC allows intercalation of gallium atoms on the SiC substrate and stabilizes the ...

  view more
• 

  [PDF] Phonon Dispersions of fcc δ-Plutonium-Gallium by Inelastic X-ray ...

  Phonon Dispersions of fcc δ-Plutonium-Gallium by Inelastic X-ray Scattering. We report an experimental determination of the phonon dispersion curves in a face-centered cubic (fcc) δ-plutonium–0.6 weight % gallium alloy. Several unusual features, including a large elastic anisotropy, a small-shear elastic modulus C′, a Kohn-like anomaly in ...

  view more
• 

  Surface layering in liquid gallium: An X-ray reflectivity study.

  The amplitude of the electron density oscillations decays with a characteristic length of 6 A, which is unexpectedly twice that of recent results for Hg, and the difference may be related to covalent bonding or supercooling. Surface-induced atomic layering in liquid gallium has been observed using x-ray reflectivity, ultrahigh vacuum conditions, and sputtered clean …

  view more