Temperature dependence of the quadratic electrooptic effect and estimation of antipolarization of ADP by R. Ledzion, K. Bondarczuk, and W. Kucharczyk

Crystal Research and Technology

Cryst. Res. Technol. 39, 161 (2004) - Abstract -

Temperature dependence of the quadratic electrooptic effect and estimation of antipolarization of ADP

R. Ledzion, K. Bondarczuk, and W. Kucharczyk

Institute of Physics, Technical University of Lodz, ul. Wolczanska 219, 93-005 Lodz, Poland

Keywords	electrooptic effects, spontaneous antipolarization, NH4H2PO4
PACS	78.20.Jq, 77.84.Fa
DOI	10.1002/crat.200310165

Measurements of the temperature dependence of the quadratic electrooptic coefficient |g₁₁₁₁-g₂₂₁₁| of ADP were made. The coefficient is found to decrease with an increase in temperature. The results show that the intrinsic quadratic electrooptic coefficient |M₁₁₁₁-M₂₂₁₁| defined in terms of polarization also dependes on temperature. Employing the temperature dependence of |M₁₁₁₁-M₂₂₁₁| estimation of antipolarization in low-temperature antiferroelectric phase of ADP is made.

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