Effects of non-stoichiometry on Raman spectra of K6Li4Nb10O30(KLN) compounds
| Autor: | D. Rytz, W. Fortin, G. E. Kugel |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Materials science
Second-harmonic generation Condensed Matter Physics Molecular physics Ferroelectric crystal Electronic Optical and Magnetic Materials Characterization (materials science) symbols.namesake Nuclear magnetic resonance Octahedron Position (vector) symbols Raman spectroscopy Stoichiometry |
| Zdroj: | Ferroelectrics. 202:131-138 |
| ISSN: | 1563-5112 0015-0193 |
| DOI: | 10.1080/00150199708213469 |
| Popis: | The strong influence of Nb excess in K6Li4Nb10O30 (KLN) ferroelectric crystals on optical and second harmonic generation properties makes it necessary to develop a non-destructive characterization procedure. Raman spectra of KLN are very sensitive to the Nb excess. The broadening and the peak position of an octahedron mode give a quantitative data to determine the Nb excess: for increasing concentrations, the frequency of a particular mode decreases and a broadening of all the modes occurs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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