@article{33698,
  keywords = {deposition, thin films, transmission electron microscopy, ions, oxides, substrates, oxide films, lanthanum compounds, Computer simulation, X ray diffraction, Crystal lattices, Molecular structure, Crystal atomic structure, Spectrometers, Cubic face centered cubic structure, Energy dispersive spectrometry, High resolution lattice images, Perovskite structure},
  author = {H Li and L Salamanca-Riba and Ramamoorthy Ramesh and J.H Scott},
  title = {Ordering in (La,Sr)(Al,Ta)O3 substrates},
  abstract = {(La, Sr)(Al, Ta)O3 (LSAT) has recently received increased attention as a substrate for the deposition of various oxide films. LSAT is usually considered as having a perovskite structure. However, the exact atomic structure of LSAT is not yet well known and has received little attention up to now. In this paper, a series of studies using x-ray diffraction, transmission electron microscopy, and energy dispersive spectrometry were conducted to determine the atomic structure of LSAT. It was found that LSAT consists of two types of domains: one with a simple cubic perovskite structure (disordered with a = 0.3868 nm) and the other with a face-centered-cubic structure (ordered with a = 0.773 nm). Computer image simulation of high-resolution lattice images suggests that the ordered structure is due to ordering of the Al and Ta ions.},
  year = {2003},
  journal = {Journal of Materials Research},
  volume = {18},
  number = {7},
  pages = {1698-1704},
  publisher = {Materials Research Society},
  issn = {08842914},
  doi = {10.1557/JMR.2003.0233},
  note = {cited By 16},
  language = {eng},
}