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 language | English |
|---|---|
| Pages (from-to) | 2055-2058 |
| Number of pages | 4 |
| Journal | Current Applied Physics |
| Volume | 13 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2013 Oct 14 |
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Keywords
- Glassy carbon
- Hydrothermal treatment
- Raman spectroscopy
- Room-temperature ferromagnetism
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
Cite this
Cho, H. J., Lee, K. W., & Lee, C. E. (2013). Room-temperature ferromagnetism in hydrothermally treated glassy carbon. Current Applied Physics, 13(9), 2055-2058. https://doi.org/10.1016/j.cap.2013.09.007