title: Current-pulse-induced enhancement of transient photodetective effect in tilted manganite film.
abstract: A current-pulse-induced enhancement effect of transient photovoltage has been discovered in tilted manganite La(2/3)Ca(1/3)MnO(3) film at room temperature. Here, by applying a pulsed current stimulus before pulse laser irradiation, we observed a significant enhancement of more than 50% in photovoltaic sensitivity. The current-pulse-induced photovoltaic enhancement can be tuned not only by the stimulating current value but also by the stimulating time. Such enhancement is time-sensitive and reproducible. This electrically induced effect, observed at room temperature, has both the benefit of a discovery in materials properties and the promise of applications for thin film manganites in photodetectors.
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
authors.forename: H
authors.initials: H
authors.lastname: Ni
authors.forename: K
authors.initials: K
authors.lastname: Zhao
authors.forename: J F
authors.initials: JF
authors.lastname: Xi
authors.forename: X
authors.initials: X
authors.lastname: Feng
authors.forename: W F
authors.initials: WF
authors.lastname: Xiang
authors.forename: S Q
authors.initials: SQ
authors.lastname: Zhao
authors.forename: Y-C
authors.initials: YC
authors.lastname: Kong
authors.forename: H K
authors.initials: HK
authors.lastname: Wong
mesh_terms: D003217:Conductometry / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D017895:Manganese Compounds / Q000737:chemistry* / Q000528:radiation effects; D008567:Membranes, Artificial; D010783:Photometry / Q000295:instrumentation*
chemical_list: D017895:Manganese Compounds; D008567:Membranes, Artificial; C494384:manganite