Paper Title:
Synthesis and Crystal Structure of the Double Perovskite Ca2-xSrxMnWO6 (x = 0.0, 0.5, 1.0, 1.5, 2.0)
  Abstract

The double perovskites Ca2-xSrxMnWO6 (x = 0.0, 0.5, 1.0, 1.5, 2.0) have been prepared as pure phases by a conventional solid-state reaction process. Stoichiometric amounts of CaCO3,SrCO3, MnO and WO3 were mixed, ground and calcined in a nitrogen atmosphere. X-ray and neutron powder diffraction (NPD), together with magnetisation measurements were carried out in order to characterise the materials. The NPD and magnetisation measurements, performed at different temperatures, were made in order to correlate the materials structural and magnetic properties. Susceptibility- Temperature (ϰ-T) curves were measured between 2K and 200K in field cooled (FC) and zero-field-cooled (ZFC) modes with an applied field (H) up to 3T. Rietveld analysis of NPD data shows that the samples were B-site ordered perovskites with different types of lattice symmetry. Magnetisation measurements at low temperatures indicate an antiferromagnetic ordering of the magnetic moments.

  Info
Periodical
Materials Science Forum (Volumes 443-444)
Edited by
Yvonne Andersson, Eric J. Mittemeijer and Udo Welzel
Pages
375-378
DOI
10.4028/www.scientific.net/MSF.443-444.375
Citation
A.K. Azad, S.-G. Eriksson, H. Rundlöf, J. Eriksen, "Synthesis and Crystal Structure of the Double Perovskite Ca2-xSrxMnWO6 (x = 0.0, 0.5, 1.0, 1.5, 2.0) ", Materials Science Forum, Vols. 443-444, pp. 375-378, 2004
Online since
January 2004
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