Crystalline orientations of Tl2Ba2Ca2Cu3Ox grains on MgO, SrTiO3, and LaAlO3 substrates
Abstract
Crystalline orientations of Tl2Ba2Ca2Cu3Ox grains in magnetron sputtered films on MgO (001), SrTiO3 (001), and LaAlO3 (001) substrates were investigated by scanning electron microscopy. In contrast to the nearly single crystalline films on the lattice matched substrates SrTiO3 and LaAlO3, films on the MgO (001) substrate, being polycrystalline in nature, exhibit several preferred in-plane grain orientations. These orientations agree well with a simplified theory of near-coincidence site lattices between Tl2Ba2Ca2Cu3Ox and MgO.
- Publication:
-
Applied Physics Letters
- Pub Date:
- June 1992
- DOI:
- 10.1063/1.106833
- Bibcode:
- 1992ApPhL..60.2803L
- Keywords:
-
- Copper Oxides;
- Crystallinity;
- High Temperature Superconductors;
- Magnetron Sputtering;
- Mixed Oxides;
- Thallium Compounds;
- Barium Oxides;
- Calcium Oxides;
- Electron Microscopy;
- Lanthanum Compounds;
- Magnesium Oxides;
- Scanning Electron Microscopy;
- Strontium Titanates;
- Superconducting Films;
- Solid-State Physics