Document Type
Article
Publication Date
9-1-2010
Abstract
We review the pyroelectric properties and electronic structure of Li2B4O7(110) and Li2B4O7(100) surfaces. There is evidence for a pyroelectric current along the [110] direction of stoichiometric Li2B4O7 so that the pyroelectric coefficient is nonzero but roughly 103 smaller than along the [001] direction of spontaneous polarization. Abrupt decreases in the pyroelectric coefficient along the [110] direction can be correlated with anomalies in the elastic stiffness contributing to the concept that the pyroelectric coefficient is not simply a vector but has qualities of a tensor, as expected. The time dependent surface photovoltaic charging suggests that surface charging is dependent on crystal orientation and doping, as well as temperature.
DOI
10.3390/ma3094550
Source Publication
Materials
Recommended Citation
Adamiv, V. T., et al. (2010). The Electronic Structure and Secondary Pyroelectric Properties of Lithium Tetraborate. Materials, 3(9), 4550–4579. https://doi.org/10.3390/ma3094550
Comments
This is an open access article published by MDPI and distributed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) License, which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
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This article belongs to the Special Issue of Materials, "Advances in Ferroelectric & Piezoelectric Materials."