HREM Study of the Defects in the Orthorhombic Superconductor YBa 2 Cu 3 O 7±ε . II. - Oxygen Substoichiometry and Cationic Disorder
- 15 July 1987
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 4 (2), 211-214
- https://doi.org/10.1209/0295-5075/4/2/013
Abstract
The high-resolution electron microscopy investigation of defects of the orthorhombic superconductor YBa2Cu3O7±ε has been carried out using image simulation. Besides the defects involving oxygen overstoichiometry previously described, two types of defects involving a cationic disorder have been identified. The first series of defects corresponds to the formation of SrCuO2 type defects, i.e. an oxygen substoichiometry, whereas the second series deals with a shifting of the barium and yttrium planes along c.Keywords
This publication has 3 references indexed in Scilit:
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- Structure of the 100 K Superconductor Ba 2 YCu 3 O 7 between (5 ÷ 300) K by Neutron Powder DiffractionEurophysics Letters, 1987
- Über Erdalkalimetall—Oxocuprate. II. Zur Kenntnis von Sr2CuO3Zeitschrift für anorganische und allgemeine Chemie, 1969