Photoconductivity in Oxygen Deficient La0.7 Pbx □0.3 − x MnO3 − δ Thin Films Prepared by Chemical Route

被引：0
|
作者：
R. Cauro
R. Papiernik
A. Gilabert
Y. Girault
J.-C. Grenet
M. G. Medici
P. Thomas
C. Muller
机构：
[1] L.T.E.,
[2] UMR6595,undefined
[3] Université de Nice-Sophia Antipolis,undefined
[4] L.P.M.C.,undefined
[5] UMR6622,undefined
[6] Université de Nice-Sophia Antipolis,undefined
[7] S.P.C.T.S. UMR 6638 CNRS Faculté des Sciences,undefined
[8] M.M.I.,undefined
[9] Université de Toulon et du Var,undefined
来源：
Journal of Superconductivity | 2001年 / 14卷
关键词：
manganites; photoconductivity;
D O I：
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学科分类号：
摘要：
We report the influence of light irradiation on the electrical properties of oxygen deficient La0.7Pbx □0.3 − x MnO3 − δ thin films with (x = 0.1) and without (x = 0.3) cation vacancies (noted by □). Transient photoconductivity and photoinduced insulator–metal transition occurs at low temperatures in these thin films. Introducing cation vacancies does not increase the Mn4+/Mn3+ ratio but creates a sheared structure that decreases the oxygen content and can explain our transport and photoconductivity results.
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页码：235 / 244
页数：9
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