Domain response features of SBN : Ce
| Autor(en): | Lehnen, P Dec, J Kleemann, W Woike, T Pankrath, R |
Stichwörter: | dielectric susceptibility; domain properties; Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Condensed Matter; piezoelectric force microscopy; relaxor; second harmonic generation | Erscheinungsdatum: | 2002 | Herausgeber: | TAYLOR & FRANCIS LTD | Enthalten in: | FERROELECTRICS | Band: | 268 | Startseite: | 113 | Seitenende: | 118 | Zusammenfassung: | Domain properties of Sr0.61-xBa0.39Nb2O6:Ce-x(3+) (SBN:Ce) are examined by dielectric spectroscopy, piezoelectric force microscopy (PFM) and optical second harmonic generation (SHG). Fractal-like nanodomains are observed with PFM in its initial state below T-C . Their size distribution fits well to a power-law with exponential cutoff as predicted from computer simulations. An analysis of the SHG-intensity yields the temperature dependence of the correlation length of the polar clusters. The low frequency dielectric response stems from irreversible domain wall motions. |
Beschreibung: | 10th International Meeting on Ferroelectricity, MADRID, SPAIN, SEP 03-07, 2001 |
ISSN: | 00150193 | DOI: | 10.1080/00150190211103 |
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