Structure and magnetic order in the series Bi xRE 1-xFe 0.5Mn 0.5O 3 (RE=La,Nd)

  1. Get@NRC: Structure and magnetic order in the series Bi xRE 1-xFe 0.5Mn 0.5O 3 (RE=La,Nd) (Opens in a new window)
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Journal titleJournal of Solid State Chemistry
Pages830842; # of pages: 13
SubjectAmbient pressures; Antiferromagnetic orders; Antiferromagnetics; Bismuth substitution; Bond valences; Cluster glass; Endmembers; Ferromagnetic component; Lanthanides; Long-range ordering; Magnetic orders; Multiferroics; Ordered magnetic moments; Powder neutron diffraction; Structural and magnetic properties; Antiferromagnetic materials; Antiferromagnetism; Bismuth; Crystal structure; Glass transition; Magnetic moments; Magnetic properties; Manganese; Neodymium; Neutron diffraction; Perovskite; Lanthanum
AbstractThe influence of Bi 3 on the structural and magnetic properties of the rare-earth-containing perovskites REFe 0.5Mn 0.5O 3 (RE=La,Nd) was studied, and the limit of bismuth substitution was determined to be x≤0.5 in Bi xRE 1-xFe 0.5Mn 0.5O 3δ (RE=La,Nd) at ambient pressure. Crystal structures in both La and Nd series were determined to be GdFeO 3-type Pnma with the exception of the Bi 0.3La 0.7Fe 0.5Mn 0.5O 3 sample, which is monoclinic I2/a in the a -b -b - tilt scheme. The samples undergo a transition to G-type antiferromagnetic order along with a weak ferromagnetic component, mixed with cluster-glass type behavior. The substitution of bismuth into the lattice results in a drop in T N relative to the lanthanide end-members. Long range ordering temperatures T N in the range 240255 K were observed, with a significantly lower ordered magnetic moment in the case of lanthanum (M∼1.71.9 μ B) than in the case of neodymium (M∼2.1 μ B). © 2011 Published by Elsevier Inc. All rights reserved.
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AffiliationNational Research Council Canada (NRC-CNRC); NRC Canadian Neutron Beam Centre (CNBC-CCFN)
Peer reviewedYes
NPARC number21271349
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Record identifierb42fe816-b2ed-4834-9379-ffe46668d067
Record created2014-03-24
Record modified2016-05-09
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