Activation energy of small polarons and conductivity in LiNbO3 and LiTaO3 crystals

Eliminating pyroelectric and other disturbances, with the aid of the curves of bulk and surface current versus temperature, the conductivity character of LiNbO3(LN) and LiTaO3(LT) is studied at different temperatures. The activation energy is obtained, which is needed for bound small polarons in LN...

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Veröffentlicht in:	Physica status solidi. B. Basic research 1996-04, Vol.194 (2), p.661-665
Hauptverfasser:	Wang, Qi, Leng, Shuyan, Yu, Yansheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductivity phenomena in semiconductors and insulators Electronic transport in condensed matter Exact sciences and technology Low-field transport and mobility piezoresistance Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Eliminating pyroelectric and other disturbances, with the aid of the curves of bulk and surface current versus temperature, the conductivity character of LiNbO3(LN) and LiTaO3(LT) is studied at different temperatures. The activation energy is obtained, which is needed for bound small polarons in LN and LT crystals to jump across their potential barrier to give rise to hopping conduction.
ISSN:	0370-1972 1521-3951
DOI:	10.1002/pssb.2221940221