Abstract
We have studied the effects of hydrothermal treatment on fullerene (C60) 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.
Original language | English |
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Article number | 114540 |
Journal | Physica E: Low-Dimensional Systems and Nanostructures |
Volume | 127 |
DOIs | |
State | Published - Mar 2021 |
Keywords
- Ferromagnetic resonance signal
- Fullerene
- Hydrothermal treatment
- Room-temperature ferromagnetism