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Title: Crystal and magnetic structure of (1−x)BiFeO{sub 3}–xSrTiO{sub 3} (x=0.2, 0.3, 0.4 and 0.8)

The effect of doping SrTiO{sub 3} into BiFeO{sub 3} on the magnetic and crystal structure has been explored using powder neutron diffraction for (1−x)BiFeO{sub 3}–xSrTiO{sub 3} where x=0.2, 0.3, 0.4, 0.6 and 0.8. While the data are not sensitive to the cycloidal component of the magnetic ordering, the evolution of the collinear antiferromagnetic moment of the G-type antiferromagnetic component with T and x has been explored, as have structural parameters. It is found that for x≤0.4 pure phase samples form in the R3c cell, and for x=0.8 a non-magnetic Pm3{sup ¯}m phase is obtained. The x=0.6 sample gives a mixed phase. Through the R3c phase the magnetic structure does not change appreciably apart from the reduction of magnetic moment magnitude with the increasing T and/or x. - Graphical abstract: A simple phase diagram for (1−x)BiFeO{sub 3}–xSrTiO{sub 3} , where hexagons indicate the rhombohedral R3c phase and boxes the cubic phase. Filled symbols indicate magnetic ordering. The black arrow indicates T{sub N} for BiFeO{sub 3}. Display Omitted - Highlights: • We have established part of the phase diagram for doping SrTiO{sub 3} into BiFeO{sub 3}. • (1−x)BiFeO{sub 3}–xSrTiO{sub 3} is isostructural with BiFeO{sub 3} up to x<0.4, and cubic for x>0.85.more » • We have examined the evolution of ordered magnetic moment with T and x.« less
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Research School of Chemistry, The Australian National University, Canberra 0200 (Australia)
  2. The Bragg Institute, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234 (Australia)
  3. School of Physical, Environmental and Mathematical Sciences, University of New South Wales, Canberra (Australia)
Publication Date:
OSTI Identifier:
22274152
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 207; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANTIFERROMAGNETISM; BISMUTH; CRYSTALS; CUBIC LATTICES; FERRITE; FERRITES; MAGNETIC MOMENTS; MAGNETIZATION; NEUTRON DIFFRACTION; PHASE DIAGRAMS; POWDERS; STRONTIUM; STRONTIUM TITANATES; TRIGONAL LATTICES