Room-temperature ferromagnetism in hydrothermally treated glassy carbon

Hyun Jin Cho, Kyu Won Lee, Cheol Eui Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Extraordinary room-temperature ferromagnetism was observed in our hydrothermally treated glassy carbon systems, taken to comprise nearly graphitized regions. Strong correlation between the ferromagnetic response and the diamagnetic susceptibility, superposed together, suggests the ferromagnetic long-range order in the graphitic phase to be of itinerant nature. Besides, the graphitization process associated with the itinerant spins and the ferromagnetic order revealed a systematic correlation with the average graphitic cluster size.

Original languageEnglish
Pages (from-to)2055-2058
Number of pages4
JournalCurrent Applied Physics
Volume13
Issue number9
DOIs
Publication statusPublished - 2013

Keywords

  • Glassy carbon
  • Hydrothermal treatment
  • Raman spectroscopy
  • Room-temperature ferromagnetism

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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