Journal
RESULTS IN PHYSICS
Volume 26, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2021.104407
Keywords
Graphene oxide; Micro-Raman; Magnetization; Paramagnetism
Funding
- Open Foundation from National Key Laboratory of Materials Behavior and Evaluation Technology in Space Environments [6142910190101]
- National Key Research and Development Program of China [2020YFB2007900]
- National Science and Technology Major Project [2017-VI00200093]
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This study provides a systematic and detailed investigation on the magnetic properties of graphene oxide, revealing it to be paramagnetic instead of ferromagnetic, with properties described well by the Curie-Weiss law. It calls for a revisit on the magnetic properties of graphene oxides, graphene, and its derivatives, broadening the understanding of their magnetic behaviors.
Magnetic properties of graphene and its derivatives are very fascinating because of their promising application in spintronics. Among the graphene family materials, graphene oxide is quite typical and special for the magnetic performance. Herein we report a systematic and detailed investigation on the magnetic properties of graphene oxide. Compared to the previous reports on the ferromagnetism, our results show that graphene oxide is indeed only paramagnetic. The magnetic properties can be well described by the Curie-Weiss law. This study is not only revealing the paramagnetism in graphene oxide but also calling a revisit about the magnetic properties of graphene oxides, graphene and the other derivatives of graphene.
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