1. Optical SR investigation of thin YBa2Cu3O7−x films in the 4–30 eV range
- Author
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H. Niedrais, V.G. Stankevich, V. N. Golubev, R.A. Kink, N. Yu. Svechnikov, K. Kalder, and K.V. Kaznacheev
- Subjects
Physics ,Superconductivity ,Nuclear and High Energy Physics ,Electron density ,Range (particle radiation) ,business.industry ,Molecular physics ,Spectral line ,Condensed Matter::Materials Science ,Optics ,Reflection (mathematics) ,Condensed Matter::Superconductivity ,Physics::Atomic and Molecular Clusters ,Deformation (engineering) ,business ,Luminescence ,Instrumentation ,Excitation - Abstract
In a wide spectral range, synchrotron-radiation investigations of the spectra of reflection, luminescence and excitation of luminescence have been carried out for thin crystalline YBa2Cu3O7−x films. A model for the lumiscence center in YBa2Cu3O7−x is proposed. The features of luminescence refer to structural changes or to a deformation of electron density in YBa2Cu3O7−x during the superconducting transition.
- Published
- 1989
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