• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Determination of large unit cells of ordered surface structures by tensor LEED

Research Project

Project/Area Number 06452038
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 固体物性Ⅰ(光物性・半導体・誘電体)
Research InstitutionHokkaido University

Principal Investigator

TOCHIHARA Hiroshi  Hokkaido University, Catalysis Research Center, Associate Professor, 触媒化学研究センター, 助教授 (80080472)

Co-Investigator(Kenkyū-buntansha) KAWAMURA Takaaki  Yamanashi University, Colledge of Education, Professor, 教育学部, 教授 (20111776)
MIZUNO Seigi  Hokkaido University, Catalysis Research Center, Research Associate, 触媒化学研究センター, 助手 (60229705)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1995: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1994: ¥5,400,000 (Direct Cost: ¥5,400,000)
KeywordsLarge unit cell / Alkali metal / Low-energy electron diffraction / Alloy / Adsorption / Surface structure determination / 表面合金 / アルカリ金属原子
Research Abstract

Surface structure sequence 2x1*3x3*4x4 formed on Cu (001) by Li deposition at room temperature has been determined by automated tensor LEED analysis. All three structures include considerable displacement of substrate surface Cu atoms. The 2x1 structure is formed by missing of every second row of the Cu (001) plane, and Li atoms are located in the missing-row sites. This is substitutional adsorption of Li atoms. At the completion of the 2x1 structure (Li coverage 0.4), no substitutional site remains. Then surface Cu and Li atoms move around and form space for Li adatoms. This is the 3x3 structure, in which a single Li adatom is located on a small island of four Cu atoms separated and joined by pairs of substitutional Li atoms. Then, Li coverage increases to 0.556, while the average adsorption energy per Li atom decreases because of appearance of Li adatoms having smaller binding energy than the substitutional Li atoms. With increasing Li coverage further, similar 4x4 structure is formed. Again the average adsorption energy decreases because of increase of Li adatoms in the 4x4. Thus the surface accommodates additional Li atoms at the cost of the average adsorption energy.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] S.Mizuno: "Complex surface alloy formed by Li adsorption on Cu (001), determined by dynamical low-energy electron diffraction" Physical Review B. 51. 1969-1972 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Mizuno: "Honecoub structure of adatoms surrounding substrtutional atoms: Cu (111)-(2×2)-3Li" Physical Review B. 51. 7981-7984 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Mizuno: "Completing the structural determination of and rationalyzing the surface structure sequence (2×1)→(3×3)→(4×4) formed on Cu (001) with in creasing Li" Physical Review B. 52. R11658-R11661 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] H.Tochiharu: "Hy brid surface structures formed on Cu (001) and Ag (001) by alkali metal adsorption" Surface Science. (発表予定). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 栃原浩: "表面のアトムプロセス" 学会出版センター, 183 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Mizuno: "Complex Surface Alloy Formed by Li Deposition on Cu (001), Determined by Dynamical Low-Energy Electron Diffraction." Phys.Rev.B 51. 1969-1972 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Mizuno: "Honeycomb Structure of Adatoms Surrounding Substituted Atoms : Cu (111)-(2x2)-3Li." Phys.Rev.B 51. 7981-7983 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Mizuno: "Completing the Structural Determination of and Rationalizing the Surface Structure Sequence (2x1)*(3x3)*(4x4) Formed on Cu (001) with Increasing Li Coverage." Phys.Rev.B 52. R11658-R11661 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Mizuno: "Complex surface alloy formed by Liadsorption on Cu(001),determined by dynamical low-energy electron diffraction" Physical Review B. 51. 1969-1972 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Mizuno: "Honecomb structure of adatoms surrounding substitutional atoms:Cu(111)-(2×2)-3Li" Physical Review B. 51. 7981-7984 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Mizuno: "Completing the structural determination of and rationalyzing the surface structure Sequence (2×1)→(3×3)→(4×4) formed on Cu(001) with in creasing Li" Physical Review B. 52. R11658-R11661 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Tochihara: "Hybrid surface Structures formed on Cu(001) and Ag(001) by alkali metal adsorption" Surface Science. (発表予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 栃原 浩: "表面のアトムプロセス" 学会出版センター, 183 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Mizuno: "Complex surface alloy formed by Li adsorptien on Cu(001),determined by dynamical low-energy electron diffraction" Physical Review B. 51. 1969-1972 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Mizuno: "Honecomb stvucture of a datoins surrounding substituted atoms:Cu(III)-(2×2)-3Li" Physical Review B. 51(印刷中)(3月号). (1995)

    • Related Report
      1994 Annual Research Report

URL: 

Published: 1994-04-01   Modified: 2020-05-15  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi