Persistent and transient photoconductivity in oxygen-deficient La2/3Sr1/3 MnO3 − δ

R. Cauro, A. Gilabert, J. P. Contour, R. Lyonnet, M. G. Medici, J. C. Grenet, C. Leighton, Ivan K. Schuller

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Light illumination produces major, interesting changes of the electrical properties of oxygen deficient La2/3Sr1/3 MnO3 − δ thin films. At small oxygen deficiency, the classical insulator-metal (I − M) transition at a temperature Tp decreases with increasing oxygen deficiency. The low-temperature metallic behavior in darkness shows a persistent increase of the conductivity with light. This photoconductivity increases with oxygen deficiency (from a few to 60%). At large oxygen deficiency, the films are semiconducting in darkness, from helium to room temperature and light induces a transient photoconductivity and a low-temperature I − M transition. The intriguing possibility of collective light induced magnetism is discussed.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number17
DOIs
StatePublished - 2001

Fingerprint Dive into the research topics of 'Persistent and transient photoconductivity in oxygen-deficient La<sub>2/3</sub>Sr<sub>1/3</sub> MnO<sub>3 − δ</sub>'. Together they form a unique fingerprint.

Cite this