Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Magnetic properties of crystalline mesoporous Zn-substituted copper ferrite synthesized under nanoconfinement in silica matrix
KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik.
Vise andre og tillknytning
2014 (engelsk)Inngår i: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 190, s. 346-355Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A series of ordered mesoporous single phase Cu1-xZnxFe2O4 spinel ferrites, with x ranging from 0.00 to 0.75 with a step increment of 0.25, are prepared by a novel nanocasting route with the aid of vinyl-functionalized mesoporous silica as a hard template. All samples display a relatively high surface area and narrow pore size distribution from nitrogen sorption analysis. The magnetic hysteresis loops of these samples measured at 300 K, the temperature dependence of the zero field cooled (ZFC) and field cooled (FC) magnetization curves and the Mossbauer Spectra show the presence of superparamagnetic nanopartides in all samples. The hysteresis data indicate that the maximum saturation magnetization of 52 emu g(-1), is obtained for the composition with x = 0.25. For x >= 0.5, the saturation magnetization decreases as a result of the cation redistribution within tetrahedral (A) and octahedral (B) sites which weakens the A-B interactions due to triangular Yafet-Kittel spin arrangement on the B-sublattice. The observed magnetic features are attributed to the confined spaces of the host material which acts as a nanoreactor, limiting the growth of the embedded oxide phase and significantly influencing the cation distribution of copper-zinc ferrite on the A and B sites.

sted, utgiver, år, opplag, sider
2014. Vol. 190, s. 346-355
Emneord [en]
Mesoporous materials, Magnetic properties, Mossbauer spectroscopy, Copper zinc ferrite, Nanocasting
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-145802DOI: 10.1016/j.micromeso.2014.02.033ISI: 000335102500044Scopus ID: 2-s2.0-84896375151OAI: oai:DiVA.org:kth-145802DiVA, id: diva2:720919
Merknad

QC 20140603

Tilgjengelig fra: 2014-06-03 Laget: 2014-06-02 Sist oppdatert: 2017-12-05bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Toprak, Muhammet S.

Søk i DiVA

Av forfatter/redaktør
Najmoddin, NajmehMohseni, Seyed MajidÅkerman, JohanMuhammed, MamounToprak, Muhammet S.
Av organisasjonen
I samme tidsskrift
Microporous and Mesoporous Materials

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 102 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf