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
Room-temperature ferromagnetism in hydrothermally treated glassy carbon. / Cho, Hyun Jin; Lee, Kyu Won; Lee, Cheol Eui.
In: Current Applied Physics, Vol. 13, No. 9, 14.10.2013, p. 2055-2058.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Room-temperature ferromagnetism in hydrothermally treated glassy carbon
AU - Cho, Hyun Jin
AU - Lee, Kyu Won
AU - Lee, Cheol Eui
PY - 2013/10/14
Y1 - 2013/10/14
N2 - 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.
AB - 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.
KW - Glassy carbon
KW - Hydrothermal treatment
KW - Raman spectroscopy
KW - Room-temperature ferromagnetism
UR - http://www.scopus.com/inward/record.url?scp=84885131476&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885131476&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2013.09.007
DO - 10.1016/j.cap.2013.09.007
M3 - Article
VL - 13
SP - 2055
EP - 2058
JO - Current Applied Physics
JF - Current Applied Physics
SN - 1567-1739
IS - 9
ER -