Anomalous magnetic behavior in nanocomposite materials of reduced graphene oxide-Ni/NiFe2O4

Pratap Kollu*, Sateesh Prathapani, Eswara K. Varaprasadarao, Chella Santosh, Sudhanshu Mallick, Andrews Nirmala Grace, D. Bahadur

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Magnetic Reduced Graphene Oxide-Nickel/NiFe2O4 (RGO-Ni/NF) nanocomposite has been synthesized by one pot solvothermal method. Respective phase formations and their purities in the composite are confirmed by High Resolution Transmission Electron Microscope and X Ray Diffraction, respectively. For the RGO-Ni/NF composite material finite-size effects lead to the anomalous magnetic behavior, which is corroborated in temperature and field dependent magnetization curves. Here, we are reporting the behavior of higher magnetization values for Zero Field Cooled condition to that of Field Cooled for the RGO-Ni/NF nanocomposite. Also, the observed negative and positive moments in Hysteresis loops at relatively smaller applied fields (100Oe and 200Oe) are explained on the basis of surface spin disorder.

Original languageEnglish
Article number052412
JournalApplied Physics Letters
Issue number5
StatePublished - 4 Aug 2014
Externally publishedYes


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