Superparamagnetic behavior of nanosized ZnFe2O4. (2018)

• Record Type: Journal Article
• Authors: Dey, S.; Mondal, R.; Majumder, S.; Dasgupta, P.; Poddar, A.; Banerjee, S.; Kumar, S.
• Is Part Of: Materials today. Volume 5:Number 4(2018)Part 3
• Page Start: 9855
• Page End: 9859
• Publication Date: 2018
• Subjects: Ferrite -- Rietveld refinement -- Mössbauer spectroscopy -- Dc magnetic study; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.10.177
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Herein, we have reported the structural, microstructural, magnetic and hyperfine properties of nanosized (∼ 20 nm) ZnFe2 O4 synthesized by flow rate controlled coprecipitation method. The PXRD and HRTEM study demonstrate that the sample is nanosized, single phase spinel oxide which crystallizes in space group . The sample exhibits superparamagnetic relaxation above blocking temperature (∼ 25 K). The saturation magnetizations of the sample are 4, 20 and 28 emu g -1 at 300, 100 and 10 K, respectively and the sample exhibits no hysteresis at 300 and 100 K.