Neutron powder diffraction studies of the La0.65Pb0.35MnO3 perovskite

Camelia N. Borca; S. Adenwalla; S. H. Liou; Q. L. Xu; J. L. Robertson; P. A. Dowben

doi:10.1016/S0167-577X(02)00785-1

Neutron powder diffraction studies of the La_0.65Pb_0.35MnO₃ perovskite

Camelia N. Borca, S. Adenwalla, S. H. Liou, Q. L. Xu, J. L. Robertson, P. A. Dowben

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The structure of La_0.65Pb_0.35MnO₃ has been studied by neutron powder diffraction. From the temperature dependence of the lattice parameters, we observe that La_0.65Pb_0.35MnO₃ remains single phase in the temperature interval from 25 to 400 K, with a rhombohedral (R3̄c) structure. The collinear Mn spins suffer a thermally driven reorientation transition close to the Curie temperature, as obtained from powder samples (using neutron diffraction) and from thin films [using ferromagnetic resonance (FMR)]. The reorientation transition may indicate the presence of local Jahn-Teller (JT) lattice distortions, which are prevented from developing with long-range order in the R3̄c crystal structure.

Original language	English (US)
Pages (from-to)	325-329
Number of pages	5
Journal	Materials Letters
Volume	57
Issue number	2
DOIs	https://doi.org/10.1016/S0167-577X(02)00785-1
State	Published - Dec 2002

Keywords

Crystal structure
Ferromagnetic resonance
Jahn-Teller distortions
Neutron diffraction
Perovskites
Spin reorientation transition

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/S0167-577X(02)00785-1

Cite this

@article{ff8cc2f933674d1f830c5e367735d752,

title = "Neutron powder diffraction studies of the La0.65Pb0.35MnO3 perovskite",

abstract = "The structure of La0.65Pb0.35MnO3 has been studied by neutron powder diffraction. From the temperature dependence of the lattice parameters, we observe that La0.65Pb0.35MnO3 remains single phase in the temperature interval from 25 to 400 K, with a rhombohedral (R{\=3}c) structure. The collinear Mn spins suffer a thermally driven reorientation transition close to the Curie temperature, as obtained from powder samples (using neutron diffraction) and from thin films [using ferromagnetic resonance (FMR)]. The reorientation transition may indicate the presence of local Jahn-Teller (JT) lattice distortions, which are prevented from developing with long-range order in the R{\=3}c crystal structure.",

keywords = "Crystal structure, Ferromagnetic resonance, Jahn-Teller distortions, Neutron diffraction, Perovskites, Spin reorientation transition",

author = "Borca, {Camelia N.} and S. Adenwalla and Liou, {S. H.} and Xu, {Q. L.} and Robertson, {J. L.} and Dowben, {P. A.}",

note = "Funding Information: The authors are grateful to B.C. Chakoumakos and P. Dai for advice with the GSAS fitting program and for helpful discussions. This research was supported by the NSF (grant DMR-98-02126). Oak Ridge National Laboratory is managed by UT-Battelle LLC under contract DE-ACOS-00OR22725 for the U.S. Department of Energy.",

year = "2002",

month = dec,

doi = "10.1016/S0167-577X(02)00785-1",

language = "English (US)",

volume = "57",

pages = "325--329",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Neutron powder diffraction studies of the La0.65Pb0.35MnO3 perovskite

AU - Borca, Camelia N.

AU - Adenwalla, S.

AU - Liou, S. H.

AU - Xu, Q. L.

AU - Robertson, J. L.

AU - Dowben, P. A.

N1 - Funding Information: The authors are grateful to B.C. Chakoumakos and P. Dai for advice with the GSAS fitting program and for helpful discussions. This research was supported by the NSF (grant DMR-98-02126). Oak Ridge National Laboratory is managed by UT-Battelle LLC under contract DE-ACOS-00OR22725 for the U.S. Department of Energy.

PY - 2002/12

Y1 - 2002/12

N2 - The structure of La0.65Pb0.35MnO3 has been studied by neutron powder diffraction. From the temperature dependence of the lattice parameters, we observe that La0.65Pb0.35MnO3 remains single phase in the temperature interval from 25 to 400 K, with a rhombohedral (R3̄c) structure. The collinear Mn spins suffer a thermally driven reorientation transition close to the Curie temperature, as obtained from powder samples (using neutron diffraction) and from thin films [using ferromagnetic resonance (FMR)]. The reorientation transition may indicate the presence of local Jahn-Teller (JT) lattice distortions, which are prevented from developing with long-range order in the R3̄c crystal structure.

AB - The structure of La0.65Pb0.35MnO3 has been studied by neutron powder diffraction. From the temperature dependence of the lattice parameters, we observe that La0.65Pb0.35MnO3 remains single phase in the temperature interval from 25 to 400 K, with a rhombohedral (R3̄c) structure. The collinear Mn spins suffer a thermally driven reorientation transition close to the Curie temperature, as obtained from powder samples (using neutron diffraction) and from thin films [using ferromagnetic resonance (FMR)]. The reorientation transition may indicate the presence of local Jahn-Teller (JT) lattice distortions, which are prevented from developing with long-range order in the R3̄c crystal structure.

KW - Crystal structure

KW - Ferromagnetic resonance

KW - Jahn-Teller distortions

KW - Neutron diffraction

KW - Perovskites

KW - Spin reorientation transition

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U2 - 10.1016/S0167-577X(02)00785-1

DO - 10.1016/S0167-577X(02)00785-1

M3 - Article

AN - SCOPUS:0036889922

SN - 0167-577X

VL - 57

SP - 325

EP - 329

JO - Materials Letters

JF - Materials Letters

IS - 2

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