Defect-induced room-temperature ferromagnetism in single-walled carbon nanotubes

Do Wan Kim, Kyu Won Lee, Cheol Eui Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Room-temperature ferromagnetism in single-walled carbon nanotubes (SWNTs) was observed and investigated in this work. Sizeable magnetization was observed in SWNTs aged in air, further increasing by hydrothermal treatment. The magnetic moment appears to arise from a spin-1 species in the pristine sample and from a spin-3/2 species in the hydrothermally treated samples. The spin-1 state may be attributed to the carbon vacancies, whereas the spin-3/2 state may be attributed to hydrogen adsorbed to the carbon vacancies by the hydrothermal treatment.

Original languageEnglish
Pages (from-to)397-400
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume460
DOIs
Publication statusPublished - 2018 Aug 15

Keywords

  • Defects
  • Room-temperature ferromagnetism
  • Single-walled carbon nanotubes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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