Work

Study of the low-frequency Raman scattering in NaNbO3crystal

Year: 2003

Type: article

Abstract: The Raman scattering spectrum of the sodium niobate crystal, in both P and R phases, has been investigated from room temperature up to 440 ° C. The dependence of the low-frequency (LF) spectrum clearly reveals, for the first time, over a wide temperature range, the presence of a strong quasi-elastic scattering below a LF zone centre phonon. The phase transition mechanism is discussed, considering an order–disorder process induced by the relaxation of the Nb ions.

Source: Journal of Physics Condensed Matter

DOI: 10.1088/0953-8984/15/9/302

Authors: E Bouziane, M D Fontana, M Ayadi

Institutions: Supélec, Centre National de la Recherche Scientifique, Laboratoire Matériaux, Optique, Photonique et Systèmes, Université Hassan II Mohammedia, Université Paul Verlaine - Metz, University of Hassan II Casablanca

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W1580146975

FWCI: 0.969

Cites: 15

Cited by: 35

Related to: 10