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Growth of NdFeAsO Films by a Combination of Metal–Organic Chemical Vapor Deposition and Arsenic Diffusion Processes.
- Source :
-
IEEE Transactions on Applied Superconductivity . Apr2014, Vol. 24 Issue 2, p1-6. 6p. - Publication Year :
- 2014
-
Abstract
- NdFeAsO films have been grown by a two-step method. First, precursor films that contain a mixture of Nd and Fe oxides were grown by metal–organic chemical vapor deposition. Afterward, the arsenic is incorporated during annealing of these precursor films in the presence of a \NdFeAsO0.75 \F0.25 pellet. The X-ray diffraction and the scanning electron microscopy show that the formation of the quaternary NdFeAsO phase is prevented by the stability of the rare-earth oxides and rare-earth oxyfluorides and that it is synthesized only if the annealing temperature is higher than 1050 ^\circ\C. Although the pellet creates a reaction atmosphere to synthesize the superconducting phase, the fluorine is not incorporated into the quaternary NdFeAsO phase. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 10518223
- Volume :
- 24
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Applied Superconductivity
- Publication Type :
- Academic Journal
- Accession number :
- 94239509
- Full Text :
- https://doi.org/10.1109/TASC.2013.2286133