Direct visualization of atomic and electronic structure on perovskite oxide film surface

Takeo Ohsawa, Katsuya Iwaya, Yoshinori Okada, Ryota Shimizu, Susumu Shiraki, Taro Hitosugi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    We have developed a low-temperature, high-magnetic-field scanning tunneling microscope (STM) combined with pulsed laser deposition (PLD), and studied the electronic structures of homoepitaxial thin film surfaces of SrTiO3(001). Thin film thicknesses were monitored during depositions using a reflection high-energy electron diffraction, and the samples were investigated by using the STM without exposing the sample surfaces to air. Scanning tunneling spectroscopy (STS) mapping reveals a number of defects that can be categorized into three feature-specific types. The development of this STM-PLD system opens up a way to investigate extraordinary and inhomogeneous electronic structures in complex oxide thin films, heterostructures and nanostructures.

    Original languageEnglish
    Title of host publicationOxide-Based Materials and Devices VI
    EditorsFerechteh H. Teherani, David C. Look, David J. Rogers
    PublisherSPIE
    ISBN (Electronic)9781628414547
    DOIs
    Publication statusPublished - 2015
    EventOxide-Based Materials and Devices VI - San Francisco, United States
    Duration: 2015 Feb 82015 Feb 11

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume9364
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Other

    OtherOxide-Based Materials and Devices VI
    CountryUnited States
    CitySan Francisco
    Period15/2/815/2/11

    Keywords

    • Epitaxy
    • Scanning Tunneling Microscopy
    • Surface defects
    • and topography
    • morphology
    • roughness

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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