Broadband micro light scattering observation of ferroelectric sodium metavanadate. (19th May 2017)

• Record Type: Journal Article
• Authors: Fujii, Yasuhiro; Katayama, Daisuke; Morita, Mitsuyoshi; Koreeda, Akitoshi; Taniguchi, Hiroki; Terasaki, Ichiro
• Is Part Of: Ferroelectrics. Volume 512(2017)
• Page Start: 14
• Page End: 19
• Publication Date: 2017-05-19
• Subjects: Light scattering -- ferroelectric phase transition; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2017.1355146
• Languages: English
• ISSNs: 0015-0193

Abstract

ABSTRACT: Sodium metavanadate has pyroxene-type one dimensional VO4 -tetrahedral chains, which is analogous to the SiO4 -chains in Bi2 SiO5 . Although it is known to undergo ferroelectric phase transition, its mechanism has not been clarified. This paper shows the spectroscopic results of simultaneous measurement of Raman/Brillouin scattering by utilizing ultra-narrowband holographic notch filters. The spectroscopic anomalies accompanying to the phase transition were observed for the first time in both Raman and Brillouin regimes.