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Dependence of the critical temperature of laser-ablated yba2cu3o(7-delta) thin films on laalo3 substrate growth technique
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Warner, Joseph D. Miranda, Felix A. Bhasin, Kul B. |
| Copyright Year | 1991 |
| Description | Samples of LaAlO3 made by flame fusion and Czochralski method were subjected to the same temperature conditions that they have to undergo during the laser ablation deposition of YBa2Cu3O(7 - delta) thin films. After oxygen annealing at 750 C, the LaAlO3 substrate made by two methods experienced surface roughening. The degree of roughening on the substrate made by Czochralski method was three times greater than that on the substrate made by flame fusion. This excessive surface roughening may be the origin of the experimentally observed lowering of the critical temperature of a film deposited by laser ablation on a LaAlO3 substrate made by Czochralski method with respect to its counterpart deposited on LaAlO3 substrates made by flame fusion. |
| File Size | 1586305 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920014172 |
| Archival Resource Key | ark:/13960/t9b61gr8b |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Annealing Lanthanum Compounds High Temperature Superconductors Czochralski Method Ytterbium Compounds Laser Ablation Substrates Thin Films Single Crystals Superconducting Films Barium Oxides Critical Temperature Copper Oxides Deposition Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
