Low Temperature Bond Valence Sum Study of La1.7 Dy0.3 Ca0.6 Ba2 Cu4.6 Oz Oxide Superconductors

Autor:	Keka R. Chakraborty, P. S. R. Krishna, Nikesh A. Shah, D. G. Kuberkar, M. Ramnadham, J.H. Markana, J.A. Bhalodia, C.M. Thakar, S. Rayaprol, R. N. Parmar
Rok vydání:	2006
Předmět:	Superconductivity Valence (chemistry) Materials science Condensed matter physics Neutron diffraction General Materials Science Condensed Matter Physics Oxide superconductors Atomic and Molecular Physics and Optics
Zdroj:	Solid State Phenomena. 111:163-166
ISSN:	1662-9779
DOI:	10.4028/www.scientific.net/ssp.111.163
Popis:	Bond Valence Sum (BVS) calculations were performed on neutron diffraction (ND) data measured at 12, 35, 55, 75 and 300 K on one sample (x = 0.3), of a series of La2-xDyxCa2xBa2Cu4+2xOz (La-2125) compounds. ND experiments have been carried out to study the effect of temperature on structure and to relate it with the superconducting properties. The sample, La1.7Dy0.3Ca0.6Ba2Cu4.6Oz (LD3) has been reported earlier, and exhibits superconductivity at 68 K. In this paper we discuss BVS calculations carried out on low temperature neutron diffraction data.
Databáze:	OpenAIRE
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