Investigation of Optically Modified YBa2Cu3O7–x Films by Means of X-ray Microanalysis Technique
| Autor: | Kristina Šliužienė, Roman Sobolewski, V. Lisauskas, Lina Steponavičienė, A. Jukna, Adulfas Abrutis, Andrius Maneikis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Superconductivity
lcsh:TN1-997 Materials science oxygen deficient superconductor Analytical chemistry chemistry.chemical_element Laser YBa2Cu3O7–x superconducting thin films Microanalysis Oxygen Spectral line law.invention Atmosphere light interaction with superconducting material chemistry law General Materials Science laser-writing technique Laser power scaling remnant oxygen content Beam (structure) lcsh:Mining engineering. Metallurgy |
| Zdroj: | Medžiagotyra, Vol 20, Iss 2, Pp 215-219 (2014) |
| ISSN: | 2029-7289 1392-1320 |
| Popis: | This work reports on investigation of remnant oxygen content in optically-modified regions of 0.3-mm-thick YBa2Cu3O7–x films, patterned by a laser-writing technique in an inert ambient gas atmosphere at room temperature. A laser-treated region of weak superconductivity with dimensions depending on the size of a laser spot, laser power, and initial content of oxygen is characterized by a lower oxygen content, weaker critical magnetic field, and suppressed both the superconducting critical temperature and the critical current density, as compared to the laser untreated regions. Optically induced (cw-laser, 532-nm-wavelength) heating strongly affects a non-uniform distribution of remnant oxygen content in the film, depending both on the optical power and beam’s scanning velocity. A level of oxygen depletion and the size of the oxygen-deficient region have been directly estimated from scanning-electron-microscope spectra with the X-ray microanalysis technique. The results of our measurements were compared with results extracted from electric measurements, assuming a correlation between the remnant oxygen content and the electric transport properties of oxygen-deficient YBa2Cu3O7–x films. DOI: http://dx.doi.org/10.5755/j01.ms.20.2.6323 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|