title: Photoinduced metal-to-insulator transition in a manganite thin film.
abstract: A persistent photoinduced metal-to-insulator transition has been confirmed in a manganite thin film, Pr_(0.55)(Ca_(0.75)Sr_(0.25))_(0.45)MnO3, near a multicritical point by monitoring with transport measurements and x-ray photoemission spectroscopy. Together with the previously reported reverse effect, the photoinduced insulator-to-metal transition, it is found that the relative stability of the metallic and insulating phases interchanges around 80 K in the middle of a very wide hysteresis loop, which is a manifestation of the large potential barrier due to the long-range elastic energy. It is shown that photons are much more effective in overcoming the barrier via the electronically excited intermediate states than via the heat mode.
authors.affiliation: Research Center for Advanced Science and Technology (RCAST), University of Tokyo, Tokyo, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Takubo
authors.forename: I
authors.initials: I
authors.lastname: Onishi
authors.forename: K
authors.initials: K
authors.lastname: Takubo
authors.forename: T
authors.initials: T
authors.lastname: Mizokawa
authors.forename: K
authors.initials: K
authors.lastname: Miyano