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Synthesis of disilicide single crystal thin films with a new silicon network and study on its electronic structure

Research Project

Project/Area Number 16540290
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics I
Research InstitutionHiroshima University

Principal Investigator

TANIGUCHI Masaki  Hiroshima University, Graduate School of Science, Professor, 大学院理学研究科, 教授 (10126120)

Co-Investigator(Kenkyū-buntansha) YAMANAKA Shoji  Hiroshima University, Graduate School of Engineering, Professor, 大学院工学研究科, 教授 (90081314)
NAMATAME Hirofumi  Hiroshima Synchrotron Radiation Center, Professor, 放射光科学研究センター, 教授 (10218050)
KIMURA Akio  Hiroshima University, Graduate School of Science, Associate Professor, 大学院理学研究科, 助教授 (00272534)
SATO Hitoshi  Hiroshima Synchrotron Radiation Center, Associate Professor, 放射光科学研究センター, 助教授 (90243550)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2005: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2004: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsDisilicide Thin Film Single Crystal / Surface Reaction / CaSi_2 / Si(111) / SrSi_2 / Si Network / ARPES / SrSi / シリコンネットワーク / 角度分解光電子分光 / ジシリサイド / 光電子分光
Research Abstract

Evaporation of alkali earth metals and rare earth metals such as Ca, Sr and La on Si substrates forms MSi_2 (M = Ca, Sr, La) epitaxial film with a new various Si network, different from the diamond-type network. Although, carbon, which locates just above Si in the periodic table, forms a various network such as graphite, C_<60> and carbon nanotube, only diamond-type network has been known for Si. The purpose of the present study is to grow MSi_2 (M = Ca, Sr, La) epitaxial films and to study its electronic band structure depending on the Si network and the M ion located between the Si networks.
First, we have attempted to grow CaSi_2/Si(111) epitaxial films by evaporating Ca onto the Si(111) substrates. We have found the growth condition by using RHEED (Reflection High Energy Electron Diffraction) and AES (Auger Electron Spectroscopy) and succeeded in the growth of CaSi_2/Si(111) epitaxial films with a substrate temperature of 600 ℃ and the evaporation rate of 0.06-0.08 Å/s. We have carr … More ied out on angle-resolved photoemission spectroscopy (ARPES) for the grown epitaxial films on beamlines BL7 and BL9 at HiSOR of Hiroshima Synchrotron Radiation Center, Hiroshima University. With increasing the thickness of the evaporated Ca ion, θ, the hybridization band between the Ca 3d and Si 3p states, crossing the Fermi level (E_F), is observed. The experimental results roughly correspond to the band dispersion derived from the band-structure calculation based on LPAW [1]. We have found that with increasing 0, the Fermi wave number increases. In addition, we have succeeded in the observation of the Fermi surface with a six-fold symmetry, reflecting the surface of CaSi_2/Si(111).
After the experiments for CaSi_2/Si(111), we moved to study for SrSi_2/Si(111). Now, we have detected the band dispersion of SrSi_2/Si(111) films grown at the substrate temperature of 700 ℃. Continuously, we plan to investigate systematically the electronic structure of MSi_2/Si by changing M and orientations of the substrate Si.
[1] S. Fahy and D. R. Hamann, Phys. Rev. B 41, 7587 (1990). Less

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (27 results)

All 2007 2006 2005 2004

All Journal Article (27 results)

  • [Journal Article] Missing superconductivity in BaAlSi with the AlB_2 type structure2007

    • Author(s)
      S.Yamanaka 他8名
    • Journal Title

      Physica C 451・1

      Pages: 19-23

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Site-resolved electronic structure of Al nanocluster fabricated on Si(111) 7×7 surface2006

    • Author(s)
      H.Narita 他7名
    • Journal Title

      Journal of Surface Science and Nanotechnology 4

      Pages: 208-212

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Local electronic structure of Al nanocluster array fabricated on Si(111) 7×7 Surface2006

    • Author(s)
      H.Narita 他7名
    • Journal Title

      Japanese Journal of Applied Physics 45・3B

      Pages: 2271-2274

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Electronic structures of Fe_<3-x>V_xSi probed by photoemission spectroscopy2006

    • Author(s)
      Y.T.Cui 他13名
    • Journal Title

      Physics Status Solidi (a) 203・11

      Pages: 2765-2768

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Tunneling spectroscopy of AlB_2 type silicide superconductor CaAlSi2006

    • Author(s)
      T.Takasaki 他3名
    • Journal Title

      Physica B 383

      Pages: 80-81

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Site-resolved electronic structure of Al nanocluster fabricated on Si(111) 7x7 surface2006

    • Author(s)
      H.Narita et al.
    • Journal Title

      Journal of Surface Science and Nanotechnology 4

      Pages: 208-212

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Local electronic structure of Al nanocluster array fabricated on Si(111) 7x7 Surface2006

    • Author(s)
      H.Narita et al.
    • Journal Title

      Japanese Journal of Applied Physics 45 (3B)

      Pages: 2271-2274

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Electronic structures of Fe3-xVxSi probed by photoemission spectroscopy2006

    • Author(s)
      Y.T.Cui et al.
    • Journal Title

      Physica Status Solidi (a) 203 (11)

      Pages: 2765-2768

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Tunneling spectroscopy of AlB2 type silicide superconductor CaAlSi2006

    • Author(s)
      T.Takasaki et al.
    • Journal Title

      Physica B 383

      Pages: 80-81

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Structural evolution of the binary system Ba-Si treated under high-pressure and high-temperature conditions2006

    • Author(s)
      S.Yamanaka, S.Maekawa
    • Journal Title

      Zeitschrift fur Natureforschng 61b

      Pages: 1493-1499

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Specific heat capacity and magnetic susceptibility of superconducting Ba_<24>Si_<100>2006

    • Author(s)
      T.Rachi 他3名
    • Journal Title

      Journal of Physics and Chemistry of Solids 67・5-6

      Pages: 1334-1337

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Tunneling spectroscopy of AlB_2 type silicide superconductor CaAlSi2006

    • Author(s)
      T.Takasaki 他3名
    • Journal Title

      Physica B 383・1

      Pages: 80-81

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Electronic structures of Fe_<3-x>V_xSi probed by photoemission spectroscopy2006

    • Author(s)
      Y.T.Cui 他13名
    • Journal Title

      Physica Status Solidi (a) 203・11

      Pages: 2765-2768

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Direct evidence-of band modification and suppression of super structure in TiSe_2,upon Fe intercalation : An angle-resolved photoemission study2006

    • Author(s)
      X.Y.Cu 他14名
    • Journal Title

      Physical Review B 73・8

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Site-resolved electronic structure of Al nanocluster fabricated on Si(111) 7x7 surface2006

    • Author(s)
      H.Narita 他7名
    • Journal Title

      Journal of Surface Science and Nanotechnology 4

      Pages: 208-212

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Local Electronic Structure of Al Nanocluster Array : Fabricated, on Si(111)7x7 Surface2006

    • Author(s)
      H.Narita 他7名
    • Journal Title

      Japanese Journal of Applied Physics 45・3B

      Pages: 2271-2274

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Energy band and spin-dependent many-body interactions in ferromagnetic Ni(110) : A high-resolution angle-resolved photoemission study2005

    • Author(s)
      M.Higashiguchi 他5名
    • Journal Title

      Physical Review B 72・21

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Energy band and spin-dependent many-body interactions in ferromagnetic Ni(110) : A high- resolution angle-resolved photoemission study2005

    • Author(s)
      M.Higashiguchi et al.
    • Journal Title

      Physical Review B 72 (21)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Role of Ag doping in silicon clathrate compounds2005

    • Author(s)
      N.Kamakura 他7名
    • Journal Title

      Physical Review B 72・1

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Electronic structure and vibrational properties of Ba_8Si_<46>, Ba_8AgnSi_<46-n>, and Ba_8AU_nSi_<46-n>2005

    • Author(s)
      J.S.Tse 他6名
    • Journal Title

      Physical Review B 72・15

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Energy band and pin-dependent many-body interactions in ferromagnetic Ni(110). A high-resolution angle-resolved photoemission study2005

    • Author(s)
      M.Higashiguchi 他5名
    • Journal Title

      Physical Review B 72・21

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Compton scattering study of the silicon clathrate Ba_8Si_<46> : Experiment and theory2005

    • Author(s)
      M.Itou他5名
    • Journal Title

      Physical Review B 71・12

    • Related Report
      2004 Annual Research Report
  • [Journal Article] X-ray magnetic circular dichroism at L_<23> edge of Co nanoclusters on Si(111) surface2004

    • Author(s)
      T.Xie 他8名
    • Journal Title

      Journal of Physics. : Condensed Matter 16・48

      Pages: 5783-5786

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] X-ray magnetic circular dichroism at L23 edge of Co nanoclusters on Si(111) surface2004

    • Author(s)
      T.Xie et al.
    • Journal Title

      Journal of Physics. : Condensed Matter 16 (48)

      Pages: 5783-5786

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] X-ray magnetic circular dichroism at L_<23> edge of Co nanoclusters on Si(111) surface2004

    • Author(s)
      T.Xie他8名
    • Journal Title

      Journal of Physics. : Condensed Matter 16・48

      Pages: 5783-5786

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A kink in the dispersion of layered strontium ruthenates2004

    • Author(s)
      Y.Aiura他9名
    • Journal Title

      Physical Review Letters 93・24

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Soft x-ray high-resolution photoemission study on valence transition of YbInCu_42004

    • Author(s)
      H.Sato他19名
    • Journal Title

      Physical Review B 93・11

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2020-05-15  

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