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Laser-induced voltages in vicinal cut SrTiO3 single crystals

Published online by Cambridge University Press:  06 February 2008

K. Zhao ,
H. B. Lu  and
M. He
K. Zhao*
Affiliation:
Department of Mathematics and Physics, China University of Petroleum, Beijing 102249, P.R. China Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, P.R. China
H. B. Lu
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China
M. He
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China
*
zhk@cup.edu.cn
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Abstract

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.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 41 , Issue 2 , February 2008 , pp. 139 - 142
Copyright
© EDP Sciences, 2008

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