TY - JOUR
T1 - Room-temperature ferromagnetism in hydrothermally treated fullerene
AU - Kim, Do Wan
AU - Lee, Kyu Won
AU - Park, Won Koo
AU - Lee, Cheol Eui
N1 - 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.
PY - 2021/3
Y1 - 2021/3
N2 - 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.
AB - 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.
KW - Ferromagnetic resonance signal
KW - Fullerene
KW - Hydrothermal treatment
KW - Room-temperature ferromagnetism
UR - http://www.scopus.com/inward/record.url?scp=85097716791&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85097716791&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2020.114540
DO - 10.1016/j.physe.2020.114540
M3 - Article
AN - SCOPUS:85097716791
SN - 1386-9477
VL - 127
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
M1 - 114540
ER -