Electronic excitations of the YBa2Cu3O7-x superconductor: A study by transmission electron-energy-loss spectroscopy with an electron microprobe

C. H. Chen, L. F. Schneemeyer, S. H. Liou, M. Hong, J. Kwo, H. S. Chen, J. V. Waszczak

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Interband and core-level transitions and plasmon resonance in the high-temperature oxide superconductor YBa2Cu3O7-x were studied by transmission electron-energy-loss spectroscopy using an electron microprobe 1/45-10 in size. Both single-crystal and polycrystalline ceramic samples have been examined. No significant change in electronic structure was observed at the grain boundaries. A 13.5-eV interband-transition peak was found to be sensitive to damages created by ion-beam bombardment.

Original languageEnglish
Pages (from-to)9780-9783
Number of pages4
JournalPhysical Review B
Issue number16
StatePublished - 1 Jan 1988


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