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 | |
Publication status | Published - 2021 Mar |
Bibliographical note
Funding Information:This work was supported by the National Research Foundation of Korea (Project Nos. 2019R1A2C1002076, 2020R1I1A1A01073183 and 2019S1A5A2A03050121). The Korea Basic Science Institute (KBSI) is acknowledged for the measurements.
Funding Information:
This work was supported by the National Research Foundation of Korea (Project Nos. 2019R1A2C1002076 , 2020R1I1A1A01073183 and 2019S1A5A2A03050121 ). The Korea Basic Science Institute (KBSI) is acknowledged for the measurements.
Publisher Copyright:
© 2020 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
Keywords
- Ferromagnetic resonance signal
- Fullerene
- Hydrothermal treatment
- Room-temperature ferromagnetism
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics