Facile syntheses, crystal structures and magnetic properties of NdBaMnCoO5 and NdBaMnCoO6

A Snedden; Adrian Wright; Colin Greaves

doi:10.1016/j.materresbull.2007.07.042

Facile syntheses, crystal structures and magnetic properties of NdBaMnCoO5 and NdBaMnCoO6

A Snedden, Adrian Wright, Colin Greaves

Chemistry

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Abstract

NdBaMnCoO5 has been synthesized using a mass-flow controlled reducing reaction, followed by low (800 degrees C) temperature oxidation to produce NdBaMnCoO6. The structures and properties have been analyzed using powder neutron diffraction and magnetic susceptibility measurements. At room temperature both phases are tetragonal with unit cells a(p) x a(p) x 2a(p) (a(p) = perovskite subcell length) showing full order of the A-site cations and no order of either B-site cations or charge. Low temperature neutron diffraction shows a fully antiferromagnetic (G-type) structure for NdBaMnCoO5 (Cell root 2a(p) X root 2a(p) x root 2a(p)) and an orthorhombic cell (2a(p) x 2a(p) x 2a(p)) for NdBaMnCoO6. (C) 2007 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	2403-2412
Number of pages	10
Journal	Materials Research Bulletin
Volume	43
Issue number	8-9
DOIs	https://doi.org/10.1016/j.materresbull.2007.07.042
Publication status	Published - 1 Jan 2008

Keywords

magnetic structure

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10.1016/j.materresbull.2007.07.042

New Layered Magnanese Oxides Modelled on Copper Oxides
Greaves, C. & Wright, A.
Engineering & Physical Science Research Council
2/02/04 → 1/02/07
Project: Research Councils

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title = "Facile syntheses, crystal structures and magnetic properties of NdBaMnCoO5 and NdBaMnCoO6",

abstract = "NdBaMnCoO5 has been synthesized using a mass-flow controlled reducing reaction, followed by low (800 degrees C) temperature oxidation to produce NdBaMnCoO6. The structures and properties have been analyzed using powder neutron diffraction and magnetic susceptibility measurements. At room temperature both phases are tetragonal with unit cells a(p) x a(p) x 2a(p) (a(p) = perovskite subcell length) showing full order of the A-site cations and no order of either B-site cations or charge. Low temperature neutron diffraction shows a fully antiferromagnetic (G-type) structure for NdBaMnCoO5 (Cell root 2a(p) X root 2a(p) x root 2a(p)) and an orthorhombic cell (2a(p) x 2a(p) x 2a(p)) for NdBaMnCoO6. (C) 2007 Elsevier Ltd. All rights reserved.",

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doi = "10.1016/j.materresbull.2007.07.042",

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T1 - Facile syntheses, crystal structures and magnetic properties of NdBaMnCoO5 and NdBaMnCoO6

AU - Snedden, A

AU - Wright, Adrian

AU - Greaves, Colin

PY - 2008/1/1

Y1 - 2008/1/1

N2 - NdBaMnCoO5 has been synthesized using a mass-flow controlled reducing reaction, followed by low (800 degrees C) temperature oxidation to produce NdBaMnCoO6. The structures and properties have been analyzed using powder neutron diffraction and magnetic susceptibility measurements. At room temperature both phases are tetragonal with unit cells a(p) x a(p) x 2a(p) (a(p) = perovskite subcell length) showing full order of the A-site cations and no order of either B-site cations or charge. Low temperature neutron diffraction shows a fully antiferromagnetic (G-type) structure for NdBaMnCoO5 (Cell root 2a(p) X root 2a(p) x root 2a(p)) and an orthorhombic cell (2a(p) x 2a(p) x 2a(p)) for NdBaMnCoO6. (C) 2007 Elsevier Ltd. All rights reserved.

AB - NdBaMnCoO5 has been synthesized using a mass-flow controlled reducing reaction, followed by low (800 degrees C) temperature oxidation to produce NdBaMnCoO6. The structures and properties have been analyzed using powder neutron diffraction and magnetic susceptibility measurements. At room temperature both phases are tetragonal with unit cells a(p) x a(p) x 2a(p) (a(p) = perovskite subcell length) showing full order of the A-site cations and no order of either B-site cations or charge. Low temperature neutron diffraction shows a fully antiferromagnetic (G-type) structure for NdBaMnCoO5 (Cell root 2a(p) X root 2a(p) x root 2a(p)) and an orthorhombic cell (2a(p) x 2a(p) x 2a(p)) for NdBaMnCoO6. (C) 2007 Elsevier Ltd. All rights reserved.

KW - magnetic structure

U2 - 10.1016/j.materresbull.2007.07.042

DO - 10.1016/j.materresbull.2007.07.042

M3 - Article

VL - 43

SP - 2403

EP - 2412

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 8-9

ER -

Facile syntheses, crystal structures and magnetic properties of NdBaMnCoO5 and NdBaMnCoO6

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New Layered Magnanese Oxides Modelled on Copper Oxides

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