
| Title | Y-Ba-Cu-O superconducting films produced by long-pulse laser vaporization |
| Publication Type | Journal Article |
| Year of Publication | 1989 |
| Authors | Balooch, Mehdi, Donald R. Olander, and Richard E. Russo |
| Secondary Title | Applied Physics Letters |
| Volume | 55 |
| Issue | 2 |
| Pagination | 197 |
| Publication Language | eng |
| Keywords | film, films, laser, superconducting, superconducting films, vaporization, y-ba-cu-o, ybacuo |
| Abstract | Deposition of superconducting thin films from YBa2Cu3O7 targets using a long‐pulse (ms) Nd‐glass laser with 50 J/pulse energy has been demonstrated. The deposition rate was approximately 100 nm/pulse and the film stoichiometry was close to that of the target. Scanning electron microscopy revealed spherical inclusions in the film. Scanning tunneling microscopy in air showed a terrace‐ledge structure on the uniform portion of the film. A film produced by four pulses on a SrTiO3 substrate, held at 540 °C, and post‐annealed in O2 at 850 °C for about 2h exhibited an onset transition at 78 K and zero resistance at 61 K. This new approach can provide fast deposition rates and broad‐area film coverage per laser shot. |
| Notes | NOT IN FILE |
| URL | http://dx.doi.org/10.1063/1.102405 |
| Citation Key | 14191 |