Dynamic light scattering at domains and nanoclusters in a relaxor ferroelectric.
In the probably first successful photon correlation spectroscopy experiment on a crystalline solid, inelastic light scattering of vibrating random-field-pinned domain walls has been observed at subkilohertz frequencies in the uniaxial relaxor ferroelectric Sr(0.61--x)CexBa(0.39)Nb(2)O(6). In the paraelectric relaxor phase the response of polar nanoclusters becomes overdamped and Rayleigh-like.
Kleemann
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Laboratorium für Angewandte Physik, Gerhard-Mercator-Universität, Duisburg, D-47048 Duisburg, Germany.
Licinio
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Woike
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Pankrath
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