Research of Electrophysical Properties of Superficial Layers and Interfaces in Polar Dielectric Materials on the Anomalous Electron Emission Spectra
| Autor: | E. M. Panchenko, Vladimir P. Sakhnenko, V. V. Eremkin, A.V. Nikolskii, V. G. Smotrakov, A. T. Kozakov |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
business.industry Astrophysics::High Energy Astrophysical Phenomena Electron Dielectric Condensed Matter Physics Molecular physics Spectral line Electronic Optical and Magnetic Materials Optics visual_art Excited state visual_art.visual_art_medium Grain boundary Ceramic Emission spectrum business Porous medium |
| Zdroj: | Ferroelectrics. 391:22-32 |
| ISSN: | 1563-5112 0015-0193 |
| Popis: | Electron emission spectra excited by soft X-rays were collected from the surfaces of prepoled porous ceramic samples whose porosities varied from 7% to 64.5%. A mathematical treatment of the experimental spectra enabled isolation of the components (elementary spectra) corresponding to extrema in the potential distribution at the “negative” surface of a poled ceramic sample. It may be concluded from comparison of the theoretical and experimental results that the isolated components corresponding to the minima in the potential distribution are mainly formed by the emission from the grain boundaries, while those due to the maxima are produced by the emission from the pores. |
| Databáze: | OpenAIRE |
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