uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Neutron powder diffraction study of the magnetoelectric relaxor Pb(Fe2/3W1/3)O3
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Structural Chemistry. strukturkemi.
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Structural Chemistry. strukturkemi.
2004 (English)In: Materials Research Bulletin, Vol. 39, 2317-2328 p.Article in journal (Refereed) Published
Abstract [en]

The structural properties of complex perovskite lead iron tungstate, Pb(Fe2/3W1/3)O3 (PFW) which belongs to a class off disordered magnetoelectrics has been studied by neutron powder diffraction. Rietveld refinement of neutron powder diffraction data collected at different temperatures, between 10 and 700 K, have been carried out in order to extract structural information. The long-range structure of PFW is a cubic one (space group Pmm) within the whole temperature interval. The PFW sample demonstrated very low thermal expansion at lower temperatures. The iron and tungsten ions were found to be disordered over the perovskite B-sites. Pb cations show a position disorder shifting from their high-symmetry positions along the [1 1 1] direction. Furthermore, in order to obtain a good agreement with experiment at low temperatures, below TN, it was necessary to assign non-zero magnetic moments to the iron ions, these being in a co-linear antiferromagnetic arrangement in accordance with the antiferroelectric properties of PFW. The magnetic structure can be described with a doubling of the unit cell axes. The factors governing the observed nuclear and magnetic structures of PFW are discussed and compared with those of other quaternary iron-containing perovskites.

Place, publisher, year, edition, pages
2004. Vol. 39, 2317-2328 p.
Keyword [en]
Ceramics, Neutron scattering, Crystal structure, Magnetic structure
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-67873DOI: doi:10.1016/j.materresbull.2004.07.025OAI: oai:DiVA.org:uu-67873DiVA: diva2:95784
Available from: 2006-03-21 Created: 2006-03-21 Last updated: 2011-01-12

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Tellgren, RolandRundlöf, Håkan

Search in DiVA

By author/editor
Tellgren, RolandRundlöf, Håkan
By organisation
Department of Materials ChemistryStructural Chemistry
Inorganic Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 355 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf