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Orthorhombic to tetragonal phase transition in the RBa2Cu3O7−δ system studied by in - situ X-ray powder diffraction measurements

✍ Scribed by Y. Ueda; A. Mitushima; H. Toda; N. Kojima; M. Yoshikawa; K. Kosuge


Book ID
113187829
Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
353 KB
Volume
23
Category
Article
ISSN
0025-5408

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The crystal structure of La 0.63 (Ti 0.92 ,Nb 0.08 )O 3 has been re5ned by the Rietveld analysis of CuK X-ray powder di4raction data collected at 233C. This material was con5rmed to have an A-site de5cient orthorhombic perovskite-type structure with double ideal perovskite ABO 3 units along the c-ax