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  1. No Access

    Chapter

    Magnetocapacitance and Edge States

    The spatial distribution of edge states at quantum Hall (QH) plateaus has been studied both experimentally and theoretically. In the classical simple picture, the width of the edge states is expected to be of ...

    K. Murase, S. Takaoka, K. Oto in Mesoscopic Physics and Electronics (1998)

  2. No Access

    Article

    Characterization of Laterally Selected Si Doped Layer Formed in GaAs Using a Low-Energy FIB-MBE Combined System

    200 eV and 30 keV Si2+ FIB were implanted in an MBE-grown GaAs layer in a dose range of 1012 and 1013 cm-2. Successive overlayer regrowth of the GaAs cap layer and postannealing at 800 °C for 3 - 30 s was perform...

    H. Nakayama, J. Yanagisawa, F. Wakaya, Y. Yuba… in MRS Online Proceedings Library (1996)

  3. No Access

    Article

    Low Energy Ion Irradiation Effect on Electron Transport in Gaas/Algaas Heterostructures

    Effects of low energy ion beam induced damages on transport properties of a two-dimensional electron gas (2DEG) system in GaAs/AlGaAs heterostructures have been investigated. 1 keV Ar ions were irradiated on t...

    J. Yanagisawa, A. Nozawa, Y. Yuba, S. Takaoka, K. Murase… in MRS Online Proceedings Library (1994)

  4. No Access

    Chapter and Conference Paper

    Investigation of Roles of Amphoteric Impurity in Pb1-XSnXTe

    The submillimeter magneto-plasma absorption and the far-infrared reflectivity have been measured in Pb1-XSnXTe (x=0.25 and 0.30) films doped with indium as well as their transport properties. New informations abo...

    S. Takaoka, T. Hamaguchi, S. Shimomura… in Proceedings of the 17th International Conf… (1985)

  5. No Access

    Chapter and Conference Paper

    Evidence of fermi level pinning in Pb Sn1-xTex/In at high magnetic fields

    K. Murase, S. Takaoka, T. Itoga, S. Ishida in Application of High Magnetic Fields in Sem… (1983)