Influence of deposition conditions on the growth of micron-thick highly c-axis textured superconducting GdBa2Cu3O7-δ films on SrTiO3 (100)
| Autor: | Doopyo Lee, Inwoong Hwang, Jeffrey C. De Vero, Jong Hyun Song, Rolang V. Sarmago, Hyeonseop Shin, Shielo B. Namuco |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
High-temperature superconductivity 02 engineering and technology Surfaces and Interfaces Substrate (electronics) 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Fluence Surfaces Coatings and Films Pulsed laser deposition law.invention Crystallinity law 0103 physical sciences Composite material 010306 general physics 0210 nano-technology Layer (electronics) Single crystal |
| Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 36:031506 |
| ISSN: | 1520-8559 0734-2101 |
| DOI: | 10.1116/1.5019393 |
| Popis: | A fundamental understanding of film processing conditions and its effect on the microstructure, crystallinity, and electrical properties of thick layers of a GdBa2Cu3O7-δ (GdBaCuO) superconductor is necessary to optimize material requirements for its applications. In this work, the authors investigated the surface microstructure, crystalline quality, and superconducting properties of GdBaCuO thick films on (100) SrTiO3 single crystal substrates prepared by pulsed laser deposition (PLD). To clarify the effect of PLD growth conditions the substrate temperature, oxygen partial pressure, and laser fluence were systematically varied, then their impact was correlated on the microstructure and superconducting properties of thick layers of GdBaCuO films. By optimizing these growth conditions, the authors successfully obtained preferentially c-axis textured and superconducting films with a uniform and homogeneous layer up to 3.8 μm thick. Based on these results, the authors provide a key guiding principle in achie... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|