DIRECT OBSERVATION OF LaB//6(001) SURFACE AT HIGH TEMPERATURES BY X-RAY AND ULTRAVIOLET PHOTOELECTRON SPECTROSCOPY, LOW-ENERGY ELECTRON DIFFRACTION, AUGER ELECTRON SPECTROSCOPY, AND WORK-FUNCTION MEASUREMENTS.

M. Aono, R. Nishitani, C. Oshima, T. Tanaka, E. Bannai, S. Kawai

    Research output: Contribution to journalArticle

    26 Citations (Scopus)

    Abstract

    The properties of the LaB//6(001) surface which is in equilibrium with oxygen (ultrahigh vacuum - 10** minus **6 Torr) at high temperatures (room temperature about 1500 degree C) have been studied by XPS, UPS, LEED, AES, work-function measurements, and so on. In the case of the clean surface (experiments under ultrahigh vacuum), the chemical composition of the surface does not change up to about 1500 degree C. Under an oxygen atmosphere, the surface is covered by an oxide and has a high work function below a critical temperature T//c which depends on the oxygen pressure P//O//2. Above T//c, the surface oxide, which is rich in lanthanum content, evaporates, and the chemical composition and work function of the surface become identical to those of the clean surface under ultrahigh vacuum.

    Original languageEnglish
    Pages (from-to)4802-4807
    Number of pages6
    JournalJournal of Applied Physics
    Volume50
    Issue number7
    DOIs
    Publication statusPublished - 1979 Jul

    Fingerprint

    ultraviolet spectroscopy
    Auger spectroscopy
    electron spectroscopy
    electron diffraction
    photoelectron spectroscopy
    x rays
    ultrahigh vacuum
    energy
    chemical composition
    oxygen
    oxides
    lanthanum
    critical temperature
    atmospheres
    room temperature

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Physics and Astronomy (miscellaneous)

    Cite this

    DIRECT OBSERVATION OF LaB//6(001) SURFACE AT HIGH TEMPERATURES BY X-RAY AND ULTRAVIOLET PHOTOELECTRON SPECTROSCOPY, LOW-ENERGY ELECTRON DIFFRACTION, AUGER ELECTRON SPECTROSCOPY, AND WORK-FUNCTION MEASUREMENTS. / Aono, M.; Nishitani, R.; Oshima, C.; Tanaka, T.; Bannai, E.; Kawai, S.

    In: Journal of Applied Physics, Vol. 50, No. 7, 07.1979, p. 4802-4807.

    Research output: Contribution to journalArticle

    @article{af9b920158d44e7e833350e732fd3580,
    title = "DIRECT OBSERVATION OF LaB//6(001) SURFACE AT HIGH TEMPERATURES BY X-RAY AND ULTRAVIOLET PHOTOELECTRON SPECTROSCOPY, LOW-ENERGY ELECTRON DIFFRACTION, AUGER ELECTRON SPECTROSCOPY, AND WORK-FUNCTION MEASUREMENTS.",
    abstract = "The properties of the LaB//6(001) surface which is in equilibrium with oxygen (ultrahigh vacuum - 10** minus **6 Torr) at high temperatures (room temperature about 1500 degree C) have been studied by XPS, UPS, LEED, AES, work-function measurements, and so on. In the case of the clean surface (experiments under ultrahigh vacuum), the chemical composition of the surface does not change up to about 1500 degree C. Under an oxygen atmosphere, the surface is covered by an oxide and has a high work function below a critical temperature T//c which depends on the oxygen pressure P//O//2. Above T//c, the surface oxide, which is rich in lanthanum content, evaporates, and the chemical composition and work function of the surface become identical to those of the clean surface under ultrahigh vacuum.",
    author = "M. Aono and R. Nishitani and C. Oshima and T. Tanaka and E. Bannai and S. Kawai",
    year = "1979",
    month = "7",
    doi = "10.1063/1.326542",
    language = "English",
    volume = "50",
    pages = "4802--4807",
    journal = "Journal of Applied Physics",
    issn = "0021-8979",
    publisher = "American Institute of Physics Publising LLC",
    number = "7",

    }

    TY - JOUR

    T1 - DIRECT OBSERVATION OF LaB//6(001) SURFACE AT HIGH TEMPERATURES BY X-RAY AND ULTRAVIOLET PHOTOELECTRON SPECTROSCOPY, LOW-ENERGY ELECTRON DIFFRACTION, AUGER ELECTRON SPECTROSCOPY, AND WORK-FUNCTION MEASUREMENTS.

    AU - Aono, M.

    AU - Nishitani, R.

    AU - Oshima, C.

    AU - Tanaka, T.

    AU - Bannai, E.

    AU - Kawai, S.

    PY - 1979/7

    Y1 - 1979/7

    N2 - The properties of the LaB//6(001) surface which is in equilibrium with oxygen (ultrahigh vacuum - 10** minus **6 Torr) at high temperatures (room temperature about 1500 degree C) have been studied by XPS, UPS, LEED, AES, work-function measurements, and so on. In the case of the clean surface (experiments under ultrahigh vacuum), the chemical composition of the surface does not change up to about 1500 degree C. Under an oxygen atmosphere, the surface is covered by an oxide and has a high work function below a critical temperature T//c which depends on the oxygen pressure P//O//2. Above T//c, the surface oxide, which is rich in lanthanum content, evaporates, and the chemical composition and work function of the surface become identical to those of the clean surface under ultrahigh vacuum.

    AB - The properties of the LaB//6(001) surface which is in equilibrium with oxygen (ultrahigh vacuum - 10** minus **6 Torr) at high temperatures (room temperature about 1500 degree C) have been studied by XPS, UPS, LEED, AES, work-function measurements, and so on. In the case of the clean surface (experiments under ultrahigh vacuum), the chemical composition of the surface does not change up to about 1500 degree C. Under an oxygen atmosphere, the surface is covered by an oxide and has a high work function below a critical temperature T//c which depends on the oxygen pressure P//O//2. Above T//c, the surface oxide, which is rich in lanthanum content, evaporates, and the chemical composition and work function of the surface become identical to those of the clean surface under ultrahigh vacuum.

    UR - http://www.scopus.com/inward/record.url?scp=0018496582&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0018496582&partnerID=8YFLogxK

    U2 - 10.1063/1.326542

    DO - 10.1063/1.326542

    M3 - Article

    AN - SCOPUS:0018496582

    VL - 50

    SP - 4802

    EP - 4807

    JO - Journal of Applied Physics

    JF - Journal of Applied Physics

    SN - 0021-8979

    IS - 7

    ER -