Dielectric properties of a polar ZnSnO{sub 3} with LiNbO{sub 3}-type structure

• Published in: Journal of solid state chemistry 2012-11, Vol.195
• Main Authors: Inaguma, Yoshiyuki, Sakurai, Daichi, Aimi, Akihisa, Yoshida, Masashi, Katsumata, Tetsuhiro, Mori, Daisuke, Yeon, Jeongho, Halasyamani, P. Shiv
• Format: Article
• Language: English
• Subjects: EFFICIENCY; HARMONIC GENERATION; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; JAHN-TELLER EFFECT; LITHIUM COMPOUNDS; NIOBATES; NIOBIUM OXIDES; PERMITTIVITY; TEMPERATURE DEPENDENCE
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/J.JSSC.2012.07.036

The dielectric properties of a polar LiNbO{sub 3}-type ZnSnO{sub 3} synthesized under high-pressure have been investigated with respect to the dielectric permittivity in the relative low frequency range of 10 kHz to 1 MHz and the SHG response at an optical frequency. The small temperature dependence of dielectric permittivity without anomaly was observed in the temperature range of 300 K to 780 K. LiNbO{sub 3}-type ZnSnO{sub 3} exhibits the maximum SHG efficiency of approximately 50 times that of quartz. We then compare the structure and SHG response with those of iso-structural LiNbO{sub 3} and other known LiNbO{sub 3}-type oxides. It was found that the magnitude of SHG response is correlated to the magnitude of intra-octahedral distortion, which is effectively brought by the second-order Jahn-Teller effect. - Graphical abstract: A polar LiNbO{sub 3} (LN)-type ZnSnO{sub 3} exhibits the maximum second harmonic generation (SHG) efficiency of approximately 50 times that of quartz. The magnitude of SHG response in LN-type oxides, ABO{sub 3} is correlated to the magnitude of intra-octahedral distortion. Highlights: Black-Right-Pointing-Pointer A polar LiNbO{sub 3}(LN)-type ZnSnO{sub 3} was synthesized under high-pressure. Black-Right-Pointing-Pointer The dielectric permittivity and second harmonic generation (SHG) response was investigated. Black-Right-Pointing-Pointer LN-type ZnSnO{sub 3} exhibits the maximum SHG efficiency of approximately 50 times that of quartz. Black-Right-Pointing-Pointer The SHG response in LN-type oxides is correlated to the magnitude of intra-octahedral distortion.