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Brillouin scattering study in Lithium Tetraborate

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Pages 337-342 | Received 30 Jun 1991, Published online: 10 Feb 2011
 

Abstract

The acoustic properties of Lithium Tetraborate Li2B4O7 have been studied by Brillouin scattering. In order to investigate the phase transition of this crystal, especially the existence of a new incommensurate phase (V. V. Zaretskii and Ya. V. Burak, Sov. Phys. Solid State, 31, 960 (1989)), temperature dependences of the Brillouin frequency shifts of the acoustic phonon modes were measured in the temperature range from room temperature to liquid nitrogen. These results did not show any anomaly in overall temperature range.

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