Urbach's tail in the ordered vacancy compound CuGa3Te5
The optical absorption coefficient just below the absorption edge varies exponentially with the energy of incident photon, indicating the presence of Urbach’s tail. The phonon energy hnp associated with Urbach’s tail, which in the average is found to be 50 meV, is higher than the highest optical pho...
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| Udgivet i: | Revista Técnica de la Facultad de Ingeniería, Universidad del Zulia |
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| Principais autores: | , , , , , |
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
Universidad del Zulia
2009
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| Online adgang: | https://www.redalyc.org/articulo.oa?id=605767230006 |
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