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STM/STS characterization of the electronic structures in carbon nanotubes and their alkali metal doped complexes.

Research Project

Project/Area Number 11165239
Research Category

Grant-in-Aid for Scientific Research on Priority Areas (A)

Allocation TypeSingle-year Grants
Research InstitutionHosei University

Principal Investigator

MARUYAMA Yusei  Department of Engineering, Hosei University, Professor, 工学部, 教授 (40013479)

Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥17,100,000 (Direct Cost: ¥17,100,000)
Fiscal Year 2000: ¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 1999: ¥12,600,000 (Direct Cost: ¥12,600,000)
Keywordssingle-walled carbon nanotube / electronic structure / STM / STS / STS / ナノチューブ / 金属錯体 / カーボンナノチューブ
Research Abstract

Electronic structures of single walled carbon nanotubes (SWCNT) in an assembly state are investigated by a UHV-STM/STS technique at room and low temperatures. The atomically-resolved STM images of an SWCNT in an assembly state exhibit some characteristic one-dimensional stripes along the tube-axes, which may indicate the existence of enhanced one-dimensional density of state along these lines. STS measurements on individual SWCNTs in a bundle have revealed that they have almost the similar electronic structure in the bundle but rather different in the different bundles, which may suggest that one type of SWCNTs tends to be assembled to form one bundle. Almost all observed tunneling spectra of rubidium-doped SWCNTs show metallic features, which means that rubidium-doping results in not only the shift of the Fermi-level but also the hybridization of the electronic bands of the SWCNTs and metal ions.

Report

(3 results)
  • 2001 Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] Y.Maruyama, S.Motohashi, K.Suzuki, S.Takagi, H.Ogata: "Structure and magnetic properties of high-temperature reaction products of cerium metal and C60 solid"Solid State Communications. 115. 457-462 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Suzuki, Y.Maruyama, M.Ngayama, T.Kumagaya, K.Kosha, K.Tohji, H.Takahashi: "Scanning tunneling spectroscopic characterization of single walled carbon nanotubes in bundles"AIP Conference Proceedings.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Motohashi, Y.Maruyama, K.Watanabe, K.Suzuki, S.Takagi, H.Ogata: "Unusual Magnetic properties of high-temperature reaction products of cerium Metal and C60 solid"AIP Conference Proceedings.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.Maruyama, S.Motohashi, K.Suzuki, S.Takagi, H.Ogata: ""Structures and magnetic properties of high-temperature reaction products of cerium metal and C60 solid""Solid State Commun.. 115. 457-462 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Suzuki, Y.Maruyama, M.Nagayama, T.Kumagai, F.Kosha, K.Tohji: ""Scanning tunneling spectroscopic characterization of single-walled carbon nanotubes in bundles""AIP Conference Proceedings.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Motohashi, Y.Maruyama, K.Watanabe, K.Suzuki, S.Takagi, H.Ogata: ""Unusual magnetic properties of high-temperature reaction products of cerium metal and C60 solid""AIP Conference Proceedings.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 丸山有成: "CHARACTERIZATION BY STM AND ELECTRICAL CONDUCTIVITY SINGLE-WALLED CARBON NANOTUBES"EULLERENE SCIENCE AND TECHNOLOGY. 7・(2). 211-221 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 丸山有成: "Structures and magnetic properties of high-temperature reaction products of cerium metal and C60 solid"Solid State Communications. 115・( ). 457-462 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 丸山有成 他 7名: "Characterization by STM and Electrical Conductivity of Single Walled Carbon Nanotubes"Fullerene Sci. Tech.. 7・1. 211-221 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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