2010/05/31 by D. W. Lee, Lee, D. W., J. M. Cole +16
Engineering · Materials Science · Physics and Astronomy · #Advancements in Battery Materials #FOS: Physical sciences #Graphene research and applications #Graphite, nuclear technology, radiation studies #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1005.5580
This paper has been withdrawn by the author due to an error in dealing with data
openalex publication_date 2010/05/31 · arxiv created 2011/02/23 · arxiv updated 2011/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the magnetism in graphite by controlled oxidation. Our approach renders graphite an insulator while maintaining its structure. Fourier transform infrared spectroscopy and X-ray absorption near edge structure spectra reveal that graphite oxide has epoxy groups on its surface and it is not thermally stable. Magnetic susceptibility data exhibit negative Curie temperature, field irreversibility, and slow relaxation. The magnetic properties diminish after the epoxy groups are destroyed. The overall results indicate the unexpected magnetism is associated with the presence of epoxy groups.