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Preliminary study of electron-energy-loss spectra of YBa2 Cu3O7??

✍ Scribed by Batson, P. E. ;Chisholm, M. F.

Publisher
Wiley (John Wiley & Sons)
Year
1988
Tongue
English
Weight
377 KB
Volume
8
Category
Article
ISSN
0741-0581

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✦ Synopsis

We have obtained the electron-energy-loss spectra below 1,000 eV for YBa2C~307-~. The spectra show contributions from all elemental constituents, although the Y-signal is very weak owing to its small concentration. The low-loss region and the Ba-core losses are very similar to those obtained for BaO. The Cu absorption is similar to that seen in CuO with minor differences relating to Cu concentration and anisotropy. The oxygen 1s absorption has a shape that is quite different from that obtained in CuO and shows striking orientational anisotropy. Radiation damage in the microscope is a problem and leads to changes in the shape of the oxygen edge.

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