title: Metal-insulator transition in SrTiO(3-x) thin films induced by frozen-out carriers.
abstract: We report optical, electrical and magnetotransport properties of oxygen deficient SrTiO(3) (SrTiO(3-x)) thin films fabricated by pulsed laser deposition technique. The oxygen vacancies (O(vac)) in the thin film are expected to be uniform. By comparing its electrical properties to those of bulk SrTiO(3-x), it was found that O(vac) in bulk SrTiO(3-x) is far from uniform over the whole material. The metal-insulator transition (MIT) observed in the SrTiO(3-x) film was found to be induced by the carrier freeze-out effect. The low temperature frozen state can be reexcited by Joule heating, electric and intriguingly magnetic field.
authors: NUSNNI-Nanocore, National University of Singapore, 117542 Singapore.
authors: Z Q
authors: ZQ
authors: Liu
authors: D P
authors: DP
authors: Leusink
authors: X
authors: X
authors: Wang
authors: W M
authors: WM
authors: Lü
authors: K
authors: K
authors: Gopinadhan
authors: A
authors: A
authors: Annadi
authors: Y L
authors: YL
authors: Zhao
authors: X H
authors: XH
authors: Huang
authors: S W
authors: SW
authors: Zeng
authors: Z
authors: Z
authors: Huang
authors: A
authors: A
authors: Srivastava
authors: S
authors: S
authors: Dhar
authors: T
authors: T
authors: Venkatesan
authors: Ariando