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.

Comments

The publisher's version of record is available at MDPI:
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

This is an open access article distributed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) https://creativecommons.org/licenses/by-nc-sa/3.0/

This article belongs to the Special Issue of Materials, "Advances in Ferroelectric & Piezoelectric Materials."

DOI

10.3390/ma3094550

Source Publication

Materials

Share

COinS