Improved laser-ablated thin films of NdCeCuO by use of N2O
Thin films of the electron-doped superconductor Nd1.85Ce0.15CuO4−δ were prepared by laser ablation in O2 and N2O ambients. Although films prepared in an O2 ambient need to be reduced to become superconducting, the use of a lower oxygen pressure during deposition produces inferior films. A more metal...
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| Veröffentlicht in: | Applied physics letters 1992-11, Vol.61 (22), p.2715-2717 |
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| container_issue | 22 |
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| container_title | Applied physics letters |
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| creator | KUSSMAUL, A MOODERA, J. S TEDROW, P. M GUPTA, A |
| description | Thin films of the electron-doped superconductor Nd1.85Ce0.15CuO4−δ were prepared by laser ablation in O2 and N2O ambients. Although films prepared in an O2 ambient need to be reduced to become superconducting, the use of a lower oxygen pressure during deposition produces inferior films. A more metallic character can be obtained by increasing the O2 pressure during deposition. The substitution of N2O for O2 results in films that are superconducting without a separate reduction step, with a sharp transition at about 16 K. A short vacuum anneal at the deposition temperature yields reproducible films with Tc=20 K, without change in the transition width. |
| doi_str_mv | 10.1063/1.108070 |
| format | Article |
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A short vacuum anneal at the deposition temperature yields reproducible films with Tc=20 K, without change in the transition width.</abstract><cop>Melville, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.108070</doi><tpages>3</tpages></addata></record> |
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| ispartof | Applied physics letters, 1992-11, Vol.61 (22), p.2715-2717 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_25724123 |
| source | AIP Digital Archive |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Physics Superconducting films and low-dimensional structures Superconductivity |
| title | Improved laser-ablated thin films of NdCeCuO by use of N2O |
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