Materials 2010, 3(9), 4550-4579; doi:10.3390/ma3094550
Review

The Electronic Structure and Secondary Pyroelectric Properties of Lithium Tetraborate

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Received: 26 July 2010; Accepted: 19 August 2010 / Published: 1 September 2010
(This article belongs to the Special Issue Advances in Ferroelectric & Piezoelectric Materials)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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.
Keywords: oxide pyroelectric; band structure of insulators; surface states; secondary pyroelectric effects; lithium tetraborate
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MDPI and ACS Style

Adamiv, V.; Burak, Y.; Wooten, D.J.; McClory, J.; Petrosky, J.; Ketsman, I.; Xiao, J.; Losovyj, Y.B.; Dowben, P.A. The Electronic Structure and Secondary Pyroelectric Properties of Lithium Tetraborate. Materials 2010, 3, 4550-4579.

AMA Style

Adamiv V, Burak Y, Wooten DJ, McClory J, Petrosky J, Ketsman I, Xiao J, Losovyj YB, Dowben PA. The Electronic Structure and Secondary Pyroelectric Properties of Lithium Tetraborate. Materials. 2010; 3(9):4550-4579.

Chicago/Turabian Style

Adamiv, Volodymyr.T.; Burak, Yaroslav.V.; Wooten, David. J.; McClory, John; Petrosky, James; Ketsman, Ihor; Xiao, Jie; Losovyj, Yaroslav B.; Dowben, Peter A. 2010. "The Electronic Structure and Secondary Pyroelectric Properties of Lithium Tetraborate." Materials 3, no. 9: 4550-4579.

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