https://doi.org/10.1051/epjap:2008012
Laser-induced voltages in vicinal cut SrTiO3 single crystals
1
Department of Mathematics and Physics, China University of Petroleum, Beijing 102249, P.R. China
2
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,
Chinese Academy of Sciences, Beijing 100080, P.R. China
3
International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, P.R. China
Corresponding author: zhk@cup.edu.cn
Received:
17
February
2007
Accepted:
8
November
2007
Published online:
6
February
2008
The characteristics of transient, optically-induced voltages have been studied in a vicinal cut SrTiO3 single crystal. The effect is induced by pulsed ultraviolet laser irradiation at room temperature, and occurs without an applied bias. The duration of the measured signal agrees with that of the laser pulse. The measured voltage depends weakly on the length and linearly on the width of the irradiated area. Based on the off-diagonal Seebeck effect, the mechanism of such a dependence is proposed.
PACS: 72.40.+w – Photoconduction and photovoltaic effects / 77.84.-s – Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials / 78.20.-e – Optical properties of bulk materials and thin films
© EDP Sciences, 2008
