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Room-temperature ferromagnetism in hydrothermally treated glassy carbon
- Authors
- Cho, Hyun Jin; Lee, Kyu Won; Lee, Cheol Eui
- Issue Date
- 11월-2013
- Publisher
- ELSEVIER
- Keywords
- Glassy carbon; Hydrothermal treatment; Room-temperature ferromagnetism; Raman spectroscopy
- Citation
- CURRENT APPLIED PHYSICS, v.13, no.9, pp.2055 - 2058
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 13
- Number
- 9
- Start Page
- 2055
- End Page
- 2058
- ISSN
- 1567-1739
- 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. (C) 2013 Elsevier B.V. All rights reserved.
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