Please use this identifier to cite or link to this item:
|Oxygen content and inhomogeneity effects on the electrical properties of YBa2Cu3Oy thin films
|Aguiar i Colom, Ruth
Sánchez Barrera, Florencio
Varela Fernández, Manuel, 1956-
|Materials Research Society
|Oxygen content is a very important factor influencing the electrical properties of YBa2Cu3Oy. In this work the electrical properties of laser deposited YBa2Cu3Oy thin films on LaAlO3(100), in the whole range 6 y 7, are studied. An electrical network model, which randomly assigns oxygen contents and R(T) characteristics to the different elements in the circuit according to an arbitrary distribution, is used to analyze several features in the measured R(T) characteristics as a function of oxygen homogeneity. The model takes into account both short-range and long-range oxygen inhomogeneities. Good agreement between estimated oxygen contents from x-ray diffraction data in our samples and the average oxygen contents used to reproduce their R(T) characteristics is found. The model points out that oxygen homogeneity is very important in order to get the best and reproducible properties, and for conduction and superconductivity analysis through the shape or derivatives of R(T) characteristics.
|Reproducció del document publicat a: http://dx.doi.org/10.1557/JMR.1997.0009
|It is part of:
|Journal of Materials Research, 1997, vol. 12, núm. 1, p. 47-53
|Appears in Collections:
|Articles publicats en revistes (Física Aplicada)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.