Abstract
High quality single crystals of La2 - xSrxCuO4 (x = 0.15, 0.20) have been successfully grown using the floating zone method. Stoichiometric feed rods were prepared with a density high enough to directly zone refine. The chemical composition of the molten zone was allowed to establish itself during the first few zone lengths, thus no nonstoichiometric seed rod was necessary. Neutron diffraction shows the boule is composed of several large grains. The grain boundaries are found to be Sr-rich, containing La2SrCu2O6. Electron microscopy, X-ray back-reflection Laue and AC susceptibility data are used to characterize the crystals.
Original language | English (US) |
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Pages (from-to) | 73-78 |
Number of pages | 6 |
Journal | Journal of Crystal Growth |
Volume | 169 |
Issue number | 1 |
DOIs | |
State | Published - Nov 1996 |
Funding
This work was supported by the National Science Foundation under Grant No. DMR 91-20000 through the Science and Technology Center for Superconductivity (K.Z., R.M., Y.W. and V.D.), by the US Department of Energy, Basic Science-Materials Sciences, under contract No. W-31-109-ENG-38 (DH, AS) and by an appointment to the US Department of Energy Distinguished Postdoctoral Research Program sponsored by the US Department of Energy and administered by the Oak Ridge Institute for Science and Education (J.M.).
ASJC Scopus subject areas
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry