Spin-glass-like ordering in the spinel ZnFe2O4 ferrite
2011 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, Vol. 406, no 1, 48-51 p.Article in journal (Refereed) Published
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.
Spin-glass, AC susceptibility, Memory effect, Zn-ferrites
Physical Sciences Engineering and Technology
Research subject Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-140929DOI: 10.1016/j.physb.2010.10.010ISI: 000285212200010OAI: oai:DiVA.org:uu-140929DiVA: diva2:384875