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Spin-glass-like ordering in the spinel ZnFe2O4 ferrite
Materials Science Division, Atomic Energy Centre, Ramna, Dhaka, Bangladesh.
Dept of Applied Physics, Electronics and Communication Engineering, Islamic University, Kushtia, Bangladesh.
Dept of Physics, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
2011 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, Vol. 406, no 1, 48-51 p.Article in journal (Refereed) Published
Abstract [en]

In the present study, spin-glass-like ordering has been observed in the spinel ZnFe2O4 ferrite. Field cooled (FC) and zero-field cooled (ZFC) DC magnetizations display divergence at low temperature, which indicates a frozen state with the freezing temperature of T-f=21 K. Frequency dependence of AC susceptibility measurement was performed on the sample. It shows a peak at around T-f, with the peak position shifting as a function of driving frequency, indicating a spin-glass-like transition of the sample. The sample shows a typical spin-glass behavior with a manifestation of non-equilibrium dynamics of the spin glass, such as aging, rejuvenation and memory effects. These experimental findings indicate that Zn-ferrite exhibits a spin-glass-like phase at low temperature and it is not canted antiferromagnetic.

Place, publisher, year, edition, pages
2011. Vol. 406, no 1, 48-51 p.
Keyword [en]
Spin-glass, AC susceptibility, Memory effect, Zn-ferrites
National Category
Physical Sciences Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
URN: urn:nbn:se:uu:diva-140929DOI: 10.1016/j.physb.2010.10.010ISI: 000285212200010OAI: oai:DiVA.org:uu-140929DiVA: diva2:384875
Available from: 2011-01-10 Created: 2011-01-10 Last updated: 2014-12-15

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