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Room-temperature ferromagnetism in hydrothermally treated fullerene
- Authors
- Kim, Do Wan; Lee, Kyu Won; Park, Won Koo; Lee, Cheol Eui
- Issue Date
- 3월-2021
- Publisher
- ELSEVIER
- Keywords
- Room-temperature ferromagnetism; Fullerene; Ferromagnetic resonance signal; Hydrothermal treatment
- Citation
- PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, v.127
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
- Volume
- 127
- ISSN
- 1386-9477
- Abstract
- We have studied the effects of hydrothermal treatment on fullerene (C-60) by means of the magnetization and ferromagnetic resonance (FMR) measurements. Room-temperature ferromagnetism was observed in hydrothermally treated fullerene by the magnetization measurements, and a prominent FMR signal was also detected. The magnetization curves were analyzed by employing ferromagnetic and paramagnetic contributions. Thus, a spin-1/2 species was identified in the paramagnetic pristine fullerene, which may be attributed to hydrogen or C-OH bonds. In contrast, a spin-3/2 species was identified in the ferromagnetic hydrothermally treated fullerene, which may be explained by a hydrogen atom adsorbed to a carbon vacancy.
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Collections - College of Science > Department of Physics > 1. Journal Articles
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