109 citations · 332 across the 10 of their papers we have counts for
9 papers · 1 filter
Early Stage Growth of Amorphous Thin Film: Average Kinetics, Nanoscale Dynamics and Pressure Dependence
Chenyu Wang, Karl F. Ludwig, Christa Wagenbach +5
We used the Coherent Grazing Incidence Small Angle X-Ray Scattering (Co-GISAXS) technique to study the average kinetics and nanoscale dynamics during early-stage a-WSi sputter…
Co-GISAXS as a New Technique to Investigate Surface Growth Dynamics
Meliha G. Rainville, Christa Hoskin, Jeffrey G. Ulbrandt +5
Detailed quantitative measurement of surface dynamics during thin film growth is a major experimental challenge. Here X-ray Photon Correlation Spectroscopy with coherent hard X-ray…
Using coherent X-rays to directly measure the propagation velocity of defects during thin film deposition
Jeffrey G. Ulbrandt, Meliha G. Rainville, Christa Hoskin +5
The properties of artificially grown thin films are often strongly affected by the dynamic relationship between surface growth processes and subsurface structure. Coherent mixing o…
Evolution Process of Wurtzite ZnO Films on Cubic MgO (001) Substrates: a Structural, Optical and Electronic Investigation of the Misfit Structures
Hua Zhou, Hui-Qiong Wang, Yaping Li +8
The interface between hexagonal ZnO films and cubic MgO (001) substrates, fabricated through molecular beam epitaxy, are thoroughly investigated. X-ray diffraction and (scanning) t…
Understanding Controls on Interfacial Wetting at Epitaxial Graphene: Experiment and Theory
Hua Zhou, P. Ganesh, Volker Presser +8
The interaction of interfacial water with graphitic carbon at the atomic scale is studied as a function of the hydrophobicity of epitaxial graphene. High resolution X-ray reflectiv…
Growth of macroscopic-area single crystal polyacene thin films on arbitrary substrates
Randall L. Headrick, Hua Zhou, Binran Wang +7
Organic electronic materials have potential applications in a number of low-cost, large area electronic devices such as flat panel displays and inexpensive solar panels. Small mole…
Pressure-dependent transition from atoms to nanoparticles in magnetron sputtering: Effect on WSi2 film roughness and stress
Lan Zhou, Yiping Wang, Hua Zhou +6
We report on the transition between two regimes from several-atom clusters to much larger nanoparticles in Ar magnetron sputter deposition of WSi2, and the effect of nanoparticles…
Anomalous Expansion of the Copper-Apical Oxygen Distance in Superconducting LaCuO - LaSrCuO Bilayers
Hua Zhou, Yizhak Yacoby, Ron Pindak +3
We have introduced an improved X-ray phase-retrieval method with unprecedented speed of convergence and precision, and used it to determine with sub-Ångstrom resolution the complet…
Wavelength Tunability of Ion-bombardment Induced Ripples on Sapphire
Hua Zhou, Yiping Wang, Lan Zhou +6
A study of ripple formation on sapphire surfaces by 300-2000 eV Ar+ ion bombardment is presented. Surface characterization by in-situ synchrotron grazing incidence small angle x-ra…