Local ferromagnetism in microporous carbon with the structural regularity of zeolite Y

Y. Kopelevich, R. Da Silva, S. Torres, A. Penicaud, T. Kyotani

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54 Citations (Scopus)

Abstract

Magnetization M(H, T) measurements have been performed on microporous carbon (MC) with a three-dimensional nanoarray structure corresponding to that of a zeolite Y supercage. The obtained results unambiguously demonstrate the occurrence of high-temperature ferromagnetism in MC, probably originating from a topological disorder associated with curved graphene sheets. The results provide evidence that the ferromagnetic behavior of MC is governed by isolated clusters in a broad temperature range, and suggest the occurrence of percolative-type transition with the temperature lowering. A comparative analysis of the results obtained on MC and related materials is given.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number9
DOIs
Publication statusPublished - 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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