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a XRD pattern of ZnFe2O4/mCNTs. b Magnetization curve up to 13 kOe at room temperature of ZnFe2O4/mCNTs. Inset is enlargement of the hysteresis loop at low applied fields. c Mossbauer spectrum for ZnFe2O4/mCNTs recorded at room temperature. d UPS valence band spectra of ZnFe2O4/mCNTs and mCNTs. Inset is the density of state DOS at vicinity of Fermi level
