Structure and charge localization in Pb2Sr2Tb1−xCaxCu3O8 for x= 0.0 and 0.5
✍ Scribed by J.-E. Jørgensen; N.H. Andersen
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 275 KB
- Volume
- 235-240
- Category
- Article
- ISSN
- 0921-4534
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Powder neutron diffraction measurements were performed on the compounds Pb^Sr~Y. Ca Cu.0A+ ~ ~ A-X X (x O, 0.5) to determine the structural parameters, especially the coordi~ates and occupation of the oxygen sites. A comparison is made between the structures of the superconducting (x = 0.5) and non-
Neutron, X-ray and electron diffraction measurements have been carried out on Pb2Sr2Yl \_xCaxCu3Os+6 samples. The oxygen incorporated in the structure during the oxidation is located on the (Cu) planes sandwiched between the two (PbO) layers. A theoretical composition of 8 = 2 is possible, although