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2002 Fiscal Year Final Research Report Summary

New Formation of Transition Metal dichalcogenides nanotubes and nanofibers

Research Project

Project/Area Number 13440102
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体物性Ⅱ(磁性・金属・低温)
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

TANDA Satoshi  Hokkaido Univ., Grad.School of Eng., Asso.Prof., 大学院・工学研究科, 助教授 (80217215)

Co-Investigator(Kenkyū-buntansha) UJI Shinya  National Institution for Material Science, Chief Director, ナノマテリアル研究所, 主席研究員 (80344430)
HATAKENAKA Noriyuki  NTT Basic Research Labo., Chief Director, 主任研究員
OKAJIMA Yoshitosyi  Asahikawa National College of Technology, Asso.Prof., 助教授 (00213934)
AKERA Hiroshi  Hokkaido Univ., Grad.School of Eng., Prof., 大学院・工学研究科, 教授 (20184129)
YAMAYA Kazuhiko  Hokkaido Univ., Grad.School of Eng., Prof., 大学院・工学研究科, 教授 (80002054)
Project Period (FY) 2001 – 2002
KeywordsCWD / topological matter / Ring Crystals / superconductor / NbSe2 / NbSe3 / Mobius Crystals / Topology
Research Abstract

We have investigated new nanosize structures of a metal-dichalcogenide compound, NbSe2. Nano-crystals are characterized by scanning-and transmission electron microscopy, energy dispersive x-ray spectroscopy, and electron diffraction. We discovered evidence of the existence of NbSe2 nanotubes and nanofibers, both of which are stable crystalline systems and can be synthesized reproducibly in a nearly equilibrium reacting process. We also measured electrical resistence of the nanofibers with conductive atomic force microscopy and demonstrated that the material show metallic behavior at room temperature. Though low temperature behavior has not been revealed, the NbSe2 nanotubes may opened up the possibility of nanotube family exhibiting macroscopic quantum states such as charge density wave and superconductivity, in addition to normal metal or semiconductor (carbon nanotube) and insulator (BN and MoS2 nanotubes).

  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] S.Tanda: "A Mobius strip of single crystals"Nature. 417. 397-398 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Tanda: "A Mobius strip of single crystals"Nature. 417. 397-398 (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19   Modified: 2017-04-06  

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