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Glassy behavior of diluted Cu-Zn ferrites
Univ Chittagong, Dept Phys, Chittagong 4331, Bangladesh..
BUET, Dept Glass & Ceram Engn, Dhaka, Bangladesh..
Atom Energy Ctr, Mat Sci Div, Dhaka 1000, Bangladesh..
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.ORCID-id: 0000-0002-5261-2047
Vise andre og tillknytning
2018 (engelsk)Inngår i: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 452, s. 261-265Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The magnetic behavior of Zn substituted Cu-Zn spinel ferrites having chemical formula Cu1-xZnxFe2O4 (x = 0.7, 0.8, 0.9 and 1.0) has been studied by SQUID magnetometry, by means of magnetic hysteresis, field-cooled (FC) and zero-field-cooled (ZFC) magnetization, memory effect and low field ac susceptibility measurements. These measurements suggest that the ferrimagnetic phase of the x <= 0.8 samples is gradually turned into a spin glass (x >= 0.9). The compound with x = 0.9 exhibits the typical dynamical behavior of spin glasses, with indication of aging, rejuvenation and memory effects. The evolution of the magnetic properties of Cu-Zn spinel ferrites with substitution of Zn for Cu is discussed.

sted, utgiver, år, opplag, sider
ELSEVIER SCIENCE BV , 2018. Vol. 452, s. 261-265
Emneord [en]
Ferrites, Reentrant spin glass, Spin glass, Memory effect, ac susceptibility
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Identifikatorer
URN: urn:nbn:se:uu:diva-348826DOI: 10.1016/j.jmmm.2017.12.084ISI: 000425547700039OAI: oai:DiVA.org:uu-348826DiVA, id: diva2:1199521
Tilgjengelig fra: 2018-04-20 Laget: 2018-04-20 Sist oppdatert: 2018-05-02bibliografisk kontrollert

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