Dielectric Characterization of a Nonlinear Optical Material

Lunkenheimer, P.; Krohns, S.; Gemander, F.; Schmahl, Wolfgang W. and Loidl, A. (2014): Dielectric Characterization of a Nonlinear Optical Material. In: Scientific Reports, Vol. 4, 6020

Abstract

Batisite was reported to be a nonlinear optical material showing second harmonic generation. Using dielectric spectroscopy and polarization measurements, we provide a thorough investigation of the dielectric and charge-transport properties of this material. Batisite shows the typical characteristics of a linear lossy dielectric. No evidence for ferro- or antiferroelectric polarization is found. As the second-harmonic generation observed in batisite points to a non-centrosymmetric structure, this material is piezoelectric, but most likely not ferroelectric. In addition, we found evidence for hopping charge transport of localized charge carriers and a relaxational process at low temperatures.

• Item Type: Journal article
• Faculties: Geosciences > Department of Earth and Environmental Sciences
• Subjects: 500 Science > 550 Earth sciences and geology
• ISSN: 2045-2322
• Language: English