Structure and magnetic order in the series BixRE 1-xFe0.5Mn0.5O3 (RE=La,Nd)

C. A. Bridges; A. S. Sefat; E. A. Payzant; L. Cranswick; M. P. Paranthaman

doi:10.1016/j.jssc.2011.02.006

Structure and magnetic order in the series Bi_xRE _1-xFe_0.5Mn_0.5O₃ (RE=La,Nd)

C. A. Bridges, A. S. Sefat, E. A. Payzant, L. Cranswick, M. P. Paranthaman

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17 Scopus citations

Abstract

The influence of Bi³ on the structural and magnetic properties of the rare-earth-containing perovskites REFe_0.5Mn _0.5O₃ (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 GdFeO₃-type Pnma with the exception of the Bi _0.3La_0.7Fe_0.5Mn_0.5O₃ 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).

Original language	English
Pages (from-to)	830-842
Number of pages	13
Journal	Journal of Solid State Chemistry
Volume	184
Issue number	4
DOIs	https://doi.org/10.1016/j.jssc.2011.02.006
State	Published - Apr 2011

Funding

We acknowledge Ashfia Huq and Jason Hodges for collection of powder neutron diffraction data on the Bi 0.1 Nd 0.9 Fe 0.5 Mn 0.5 O 3 sample at the Spallation Neutron Source. We thank Larry Walker of the High Temperature Materials Laboratory at Oak Ridge National Laboratory for collection of the microprobe data, which was collected at ORNL's SHaRE User Facility. We thank Ian Swainson of Chalk River Laboratories for a critical reading of the manuscript. Research at the SHaRE User Facility and the SNS was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. Research at ORNL was sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U. S. Department of Energy.

Funders	Funder number
Office of Basic Energy Sciences
Scientific User Facilities Division
U. S. Department of Energy
U.S. Department of Energy
Division of Materials Sciences and Engineering

Keywords

Antiferromagnetic
BiREFeMnO δ (RE=La,Nd)
Bond valence
Crystal structure
Multiferroic
Perovskite
Powder neutron diffraction

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10.1016/j.jssc.2011.02.006

Cite this

@article{65e3670c6f1044eea4c736629f4c4739,

title = "Structure and magnetic order in the series BixRE 1-xFe0.5Mn0.5O3 (RE=La,Nd)",

abstract = "The influence of Bi3 on the structural and magnetic properties of the rare-earth-containing perovskites REFe0.5Mn 0.5O3 (RE=La,Nd) was studied, and the limit of bismuth substitution was determined to be x≤0.5 in BixRE 1-xFe0.5Mn0.5O3δ (RE=La,Nd) at ambient pressure. Crystal structures in both La and Nd series were determined to be GdFeO3-type Pnma with the exception of the Bi 0.3La0.7Fe0.5Mn0.5O3 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 TN relative to the lanthanide end-members. Long range ordering temperatures TN in the range 240255 K were observed, with a significantly lower ordered magnetic moment in the case of lanthanum (M∼1.71.9 μB) than in the case of neodymium (M∼2.1 μB).",

keywords = "Antiferromagnetic, BiREFeMnO δ (RE=La,Nd), Bond valence, Crystal structure, Multiferroic, Perovskite, Powder neutron diffraction",

author = "Bridges, {C. A.} and Sefat, {A. S.} and Payzant, {E. A.} and L. Cranswick and Paranthaman, {M. P.}",

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AU - Bridges, C. A.

AU - Sefat, A. S.

AU - Payzant, E. A.

AU - Cranswick, L.

AU - Paranthaman, M. P.

PY - 2011/4

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N2 - The influence of Bi3 on the structural and magnetic properties of the rare-earth-containing perovskites REFe0.5Mn 0.5O3 (RE=La,Nd) was studied, and the limit of bismuth substitution was determined to be x≤0.5 in BixRE 1-xFe0.5Mn0.5O3δ (RE=La,Nd) at ambient pressure. Crystal structures in both La and Nd series were determined to be GdFeO3-type Pnma with the exception of the Bi 0.3La0.7Fe0.5Mn0.5O3 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 TN relative to the lanthanide end-members. Long range ordering temperatures TN in the range 240255 K were observed, with a significantly lower ordered magnetic moment in the case of lanthanum (M∼1.71.9 μB) than in the case of neodymium (M∼2.1 μB).

AB - The influence of Bi3 on the structural and magnetic properties of the rare-earth-containing perovskites REFe0.5Mn 0.5O3 (RE=La,Nd) was studied, and the limit of bismuth substitution was determined to be x≤0.5 in BixRE 1-xFe0.5Mn0.5O3δ (RE=La,Nd) at ambient pressure. Crystal structures in both La and Nd series were determined to be GdFeO3-type Pnma with the exception of the Bi 0.3La0.7Fe0.5Mn0.5O3 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 TN relative to the lanthanide end-members. Long range ordering temperatures TN in the range 240255 K were observed, with a significantly lower ordered magnetic moment in the case of lanthanum (M∼1.71.9 μB) than in the case of neodymium (M∼2.1 μB).

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