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Digital Control of Terrace Width of One-dimensional Semiconductor Surfaces by Modification of Lattice Strain

Research Project

Project/Area Number 12450024
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 表面界面物性
Research InstitutionToyota Technological Institute

Principal Investigator

YOSHIMURA Masamichi  Toyota Tech. Inst., Graduate School of Eng., Assoc. Prof., 大学院・工学研究科, 助教授 (40220743)

Co-Investigator(Kenkyū-buntansha) OJIMA Kaoru  National Inst. Mat. Sci., Nanomaterial Lab, Researcher, 物質材料研究機構・ナノマテリアル研究所, 開放融合研究員 (30312119)
UEDA Kazuyuki  Toyota Tech. Inst., Graduate School of Eng., Prof., 大学院・工学研究科, 教授 (60029212)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥8,400,000 (Direct Cost: ¥8,400,000)
Fiscal Year 2001: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2000: ¥5,800,000 (Direct Cost: ¥5,800,000)
Keywordssilicon / one-dimension / nanostructure / stress / strain / surface step / pentagon / tunneling microscopy / 低次元構造 / スズ / ゲルマニウム / デジタル / ステップ
Research Abstract

The clean Si (110) surface shows a "16x2" reconstruction, where one-dimensional up-and-down terraces arrange alternatively. The terrace width is about 2.5 nm and the height difference between the adjacent terraces is one atomic layer, 0.2 nm. This surface is a promising substrate for future low-dimensional electronic devices as well as nano-biomaterials. In this study, we have tried to control the terrace width by a unique method using metal adsorption. This is based on the idea that the surface stress plays a role to determine the surface step density. The metal we used is a tin, which belongs the same periodic table as silicon, because homovalent doping does not so much affect electronic structures on the surface. At 0.2 ML adsorption of Sn on the surface, the 16x2 changed into 28x2, which was confirmed by low-energy electron diffraction as well as scanning tunneling microscopy. STM observation shows that Sn atoms forms trimers which are inserted accordingly into the silicon pentagonal clusters. As a result, surface stress was reduced to make the terrace width being enlarged to about 50%. In addition of structural point of view, we attempted to modify electronic nature of the up-and-down terraces by hydrogen termination technique. The result shows that, at the initial stage of reaction, atomic hydrogen reacts with specific atoms in pentagonal cluster to reduce surface stress, and that the up-and-down structure is kept at a saturation coverage of hydrogen, demonstrating the potential of this surface even in air. Ag and Ba deposition on Si(110) are now in progress

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] M.Yoshimura: "Atomic defects generated by hydrogen on Si(110) surface as revealed by Scanning tunneling microscopy"Mat.Sci.Eng.B. (in press). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Ishikawa: "A study of friction by carbon nanotube tip"Appl.Surf.Sci.. (in press). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Ishikawa: "Carbon nanotube as a probe for friction force microscopy"Physica B. (in press). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Ojima: "Effect of hydrogen termination on Ba reaction on the Si(100) surface"Jpn.J.Appl.Phys.. 40. 4384-4387 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Ojima: "STM observation of the 2x3 and c(2x6) structures on Ba/Si(100)"Surf.Sci.. 491. 169-174 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Umezawa: "Ag/Cu(111) surface structure and metal epitaxy by impact-collision ion-scattering spectroscopy and scanning tunneling microscopy"Physical Review B. 63. 035402 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Yoshimura, T. An, and K. Ueda: "Observation of Si(110) surfaces by high-temperature scanning tunneling mircoscopy"Jpn. J. Appl. Phys.. 39. 4432-4434 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. An. M. Yoshimura and K. Ueda: "Surface structure of Si(110)"7x2"-Sn observed by scanning tunneling microscopy"Jpn. J. Appl. Phys.. 39. 4635-4636 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Umezawa, S. Nakanishi, M. Yoshimura, K. Ojima and K. Ueda: "Ag/Cu(111) surface structure and metal epitaxy by impact-collision ion-scattering spectroscopy and scanning tunneling microscopy"Phys. Rev.. B63. 035402 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Ojima, M. Yoshimura and K. Ueda: "Effect of hydrogen termination on Ba reaction on the Si(100) surface"Jpn. J. Appl. Phys.. 40. 4384-4387 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Ojima, M. Yoshimura and K. Ueda: "STM observation of the 2x3 and c(2x6) structures on Ba/Si(100)""Surf. Sci.. 491. 169-174 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Ojima, M. Yoshimura and K. Ueda: "Observation of the Si(100) 1x2-Ba surface by scanning tunneling microscopy"Phys. Rev.. B65. 075408 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Ishikawa, M. Yoshimura and K. Ueda: "A study of friction by carbon nanotube tip"Appl. Surf. Sci.. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Ishikawa, M. Yoshimura and K. Ueda: "Carbon nanotube as a probe for friction force microscopy"Physica B. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Yoshimura, M. Odawara and K. Ueda: "Atomic defects generated by hydrogen on Si(110) surface as revealed by scanning tunneling microscopy"Mat. Sci. Eng. B. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Yoshimura: "Atomic defects generated by hydrogen on Si(110) surface as revealed by scanning tunneling microscopy"Mat, Sci. Eng. B. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Ishikawa: "A study of friction by carbon nanotube tip"Appl. Surf. Sci.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Ishikawa: "Carbon nanotube as a probe for friction force microscopy"Pysica B. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Ojima: "Effect of hydrogen termination on Bareaction on the Si(100) surface"Jpn. J. Appl. Phys. 40. 4384-4387 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Ojima: "STM observation of the 2x3 and c(2x6) structures on Ba/Si(100)"Surf.Sci.. 491. 169-174 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Umezawa: "Ag/Cu(111) surface structure and metal epitaxy by impact-collision ion-scattering spectroscopy and scanning tunneling microscopy"Physical Review B. 63. 035402 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.An: "Surface structure of Si(110)"7x2"-Sn observed by scanning tunneling microscopy"Jpn.J.Appl.Phys.. 39(7B). 4635-4636 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Yoshimura: "Observation of Si(110) surfaces by high-temperature scanning tunneling microscopy"Jpn.J.Appl.Phys.. 39(7B). 4432-4434 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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