Intercalated multilayer graphene wires and metal/multilayer graphene hybrid wires obtained by annealing sputtered amorphous carbon

Motonobu Sato, Makoto Takahashi, Haruhisa Nakano, Yuji Takakuwa, Mizuhisa Nihei, Shintaro Sato, Naoki Yokoyama

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have fabricated an intercalated multilayer graphene (i-MLG) wire and a cobalt metal/multilayer graphene (Co/MLG) hybrid wire with decreased resistivity relative to a multilayer graphene (MLG) wire by annealing sputtered amorphous carbon. The resistances of the i-MLG and Co/MLG wires decrease by 1 and 2 orders of magnitude relative to that of the MLG wire, respectively. The breakdown tests of the i-MLG and MLG wires indicate that the current tolerance per graphene layer remains almost the same, independent of whether the wires are intercalated. On the other hand, the Co/MLG hybrid wire exhibits not only decreased resistivity but also increased current tolerance. Moreover, with the optimization of the film thickness and annealing temperature, the obtained resistivities of Co/MLG, MLG, and i-MLG are 10, 80, and 6 μωcm, respectively.

Original languageEnglish
Article number04EB05
JournalJapanese journal of applied physics
Volume53
Issue number4 SPEC. ISSUE
DOIs
Publication statusPublished - 2014 Apr

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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