Enhanced room-temperature positive magnetoresistance of graphene by decorating Co particles on the surface

Qianwen Wang, Tenghua Gao, Takashi Harumoto, Kazuya Ando, Yoshio Nakamura, Ji Shi

研究成果: Article査読

抄録

Magneto-transport properties of graphene and graphene/Co have been investigated. Enhanced linear positive magnetoresistance (PMR) of graphene is obtained at room temperature by depositing Co particles on the surface, which introduces strong inhomogeneity. Graphene is still in weakly disordered regime after Co deposition as proved by weak localization effect and Raman spectra. And interfacial hybridization between graphene and Co further enhances spatial fluctuation of carrier density and mobility, inducing a higher PMR which is useful for magnetic sensing at room temperature.

本文言語English
論文番号129730
ジャーナルMaterials Letters
293
DOI
出版ステータスPublished - 2021 6 15

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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