Incommensurate double-walled carbon nanotubes as one-dimensional moiré crystals

Mikito Koshino, Pilkyung Moon, Young Woo Son

研究成果: Article査読

40 被引用数 (Scopus)

抄録

The cylindrical multishell structure is one of the prevalent atomic arrangements in nanowires. Being multishell, the well-defined atomic periodicity is hardly realized in it because the periodic units of individual shells therein generally do not match except for very few cases, posing a challenge to understanding its physical properties. Here we show that moiré patterns generated by superimposing atomic lattices of individual shells are decisive in determining its electronic structures. Double-walled carbon nanotubes, as an example, are shown to have spectacular variations in their electronic properties from metallic to semiconducting and further to insulating states depending on their moiré patterns, even when they are composed of only semiconducting nanotubes with almost similar energy gaps and diameters. Thus, aperiodic multishell nanowires can be classified into one-dimensional moiré crystals with distinct electronic structures.

本文言語English
論文番号035405
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
91
3
DOI
出版ステータスPublished - 2015 1月 8

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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