| Автор | P W Chan |
| Автор | Wenbin Wu |
| Автор | K H Wong |
| Автор | K Y Tong |
| Автор | Jeffrey T Cheung |
| Дата выпуска | 1997-03-21 |
| dc.description | Thin films of (LSCO) with very smooth surfaces were prepared in situ by pulsed laser deposition on (100) substrates. X-ray diffraction in Bragg - Brentano and four-circle geometry confirmed that full epitaxial LSCO films can be grown for a much wider deposition temperature range, 500 - C, than that reported previously. Resistivity versus temperature measurements revealed that the LSCO films grown at temperatures lower than C were metallic. However, those fabricated at higher deposition temperatures showed a semiconducting transport behaviour, similar to that of oxygen-deficient LSCO films grown at the lower temperatures. X-ray photoelectron spectra of the Sr 3d core level suggested that this change in transport behaviour may be caused by cation disorder as well as oxygen deficiency involved in the high-temperature deposition. An all a-axis oriented (YBCO/LSCO/YBCO) heterostructure was fabricated successfully for the first time, which further confirms that the conductive LSCO film is promising for fabrication of high- superconductor - normal metal - superconductor junctions. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Preparation and characterization of epitaxial films and of an all a-axis oriented heterostructure on (001) by pulsed laser deposition |
| Тип | paper |
| DOI | 10.1088/0022-3727/30/6/008 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 30 |
| Первая страница | 957 |
| Последняя страница | 961 |
| Выпуск | 6 |
