2004/08/31 by Aaron Fleet, Darren Dale, Y. Suzuki +1
Materials Science · Physics and Astronomy · #Electronic and Structural Properties of Oxides #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevlett.94.036102
published as Physical Review Letters, vol. 94, art no 036102 (2005) · 4 figures
arxiv created 2004/08/31 · openalex publication_date 2005/01/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We grew SrTiO3 on SrTiO3(001) by pulsed laser deposition, while observing x-ray diffraction at the (00(1)/(2)) position. The drop \ensuremathΔI in the x-ray intensity following a laser pulse contains information about plume-surface interactions. Kinematic theory predicts \frac\ensuremathΔII=\ensuremath-4\ensuremathσ(1\ensuremath-\ensuremathσ), so that \frac\ensuremathΔII depends only on the amount of deposited material \ensuremathσ. In contrast, we observed experimentally that |\frac\ensuremathΔII|<4\ensuremathσ(1\ensuremath-\ensuremathσ) and that \frac\ensuremathΔII depends on the phase of x-ray growth oscillations. The combined results suggest a fast smoothing mechanism that depends on surface step-edge density.