Photoconductivity in oxygen deficient La0.7Pbx rectangle 0.3-xMnO3-delta thin films prepared by chemical route

Authors
Cauro, R Papiernik, R Gilabert, A Girault, Y Grenet, JC Medici, MG Thomas, P Muller, C
Citation
R. Cauro et al., Photoconductivity in oxygen deficient La0.7Pbx rectangle 0.3-xMnO3-delta thin films prepared by chemical route, J SUPERCOND, 14(2), 2001, pp. 235-244
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF SUPERCONDUCTIVITY
ISSN journal
08961107 → ACNP
Volume
14
Issue
2
Year of publication
2001
Pages
235 - 244
Database
ISI
SICI code
0896-1107(200104)14:2<235:PIODLR>2.0.ZU;2-D
Abstract
We report the influence of light irradiation on the electrical properties o f oxygen deficient La(0.7)Pb(x)square 0.3-xMnO3-delta thin films with (x = 0.1) and without (x = 0.3) cation vacancies (noted by square). Transient ph otoconductivity and photoinduced insulator-metal transition occurs at low t emperatures in these thin films. Introducing cation vacancies does not incr ease the Mn4+/Mn3+ ratio but creates a sheared structure that decreases the oxygen content and can explain our transport and photoconductivity results .