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Effect of nanoconfinement on the formation, structural transition and magnetic behavior of mesoporous copper ferrite
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Functional Materials, FNM.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics.
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2014 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 598, 191-197 p.Article in journal (Refereed) Published
Abstract [en]

Superparamagnetic, cubic single phase, ordered mesoporous copper ferrite is synthesized through confinement in nanocages of mesoporous silica. The heat generated during the reaction is conserved in the silica template pore channels, which allows the formation of copper ferrite at a relatively low processing temperature. The Jahn-Teller distortion is suppressed due to the effect of nanoconfinement and thus the high temperature phase of cubic copper ferrite is stabilized at room temperature. The particle size obtained from TEM, the crystallite size calculated from XRD and the magnetic domain size estimated from magnetization measurements are all in good agreement, manifesting the significant role of the confinement in the growth and fabrication of crystalline, single magnetic domain, nanoparticles with superparamagnetic behavior at room temperature.

Place, publisher, year, edition, pages
2014. Vol. 598, 191-197 p.
Keyword [en]
Nanoconfinement, Ferrites, Porous materials, Magnetically ordered materials, Crystal structure, Nanostructured materials
National Category
Metallurgy and Metallic Materials Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-144524DOI: 10.1016/j.jallcom.2014.02.012ISI: 000333084200031Scopus ID: 2-s2.0-84897791443OAI: oai:DiVA.org:kth-144524DiVA: diva2:714568
Note

QC 20140428

Available from: 2014-04-28 Created: 2014-04-24 Last updated: 2017-05-17Bibliographically approved

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Toprak, Muhammet S.

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Najmoddin, NajmehMuhammed, MamounAnsari, NargesMohseni, Seyed MajidÅkerman, JohanToprak, Muhammet S.
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