Estimation of spontaneous antipolarization of ADP based on magnitude of fourth-order electrooptic effect

✍ Scribed by P. Górski; R. Ledzion; W. Kucharczyk

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 204 KB
• Volume: 42
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.200610872

✦ Synopsis

Abstract

Applying the relationship between the spontaneous birefringence of ADP appearing in the low‐temperature antiferroelectric phase with the spontaneous antipolarization, and taking into consideration the known experimental values for the quadratic and fourth‐order electrooptic effects, an estimate is made of the lower limit of the spontaneous antipolarization. The estimation, which employs the fourth‐order electrooptic effect, gives the antipolarization P = 1.2 · 10^‐2^ Cm^‐2^, a value comparable in magnitude to the spontaneous polarization observed in ferroelectrics belonging to the KDP family of crystals. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)