Magnetic interactions in Fe1-xMxSb2O4, M = Mg, Co, deduced from Mössbauer spectroscopy

Frank J. Berry; Benjamin P. De Laune; Colin Greaves; Hien-yoong Hah; Charles E. Johnson; Jacqueline A. Johnson; Saeed Kamali; Jose F. Marco; Michael F. Thomas; Mariana J. Whitaker

doi:10.1007/s10751-018-1501-7

Magnetic interactions in Fe_1-xM_xSb₂O₄, M = Mg, Co, deduced from Mössbauer spectroscopy

Frank J. Berry, Benjamin P. De Laune, Colin Greaves, Hien-yoong Hah, Charles E. Johnson, Jacqueline A. Johnson, Saeed Kamali, Jose F. Marco, Michael F. Thomas, Mariana J. Whitaker

Chemistry

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Abstract

Magnesium- and cobalt- substituted FeSb2O4, of composition Fe1−xMgxSb2O4 (x = 0.25, 0.50, 0.75) and Fe0.25Co0.75Sb2O4 have been examined by 57Fe Mössbauer spectroscopy. The complex spectra recorded from the magnetically ordered materials are interpreted in terms of models in which the dominant magnetic interactions occur along the rutile-related chains of FeO6 octahedra in the magnetic structure of FeSb2O4. In materials of the type Fe1−xMgxSb2O4, the diamagnetic Mg2+ ions have no magnetic moment and behave as non-magnetic blocks which disrupt the magnetic interactions in the chains along the c-axis forming segments of iron-containing chains separated by Mg2+ ions. In Fe0.25Co0.75Sb2O4 the spectra are composed of components from different configurations of neighbouring Fe2+ and Co2+ ions.

Original language	English
Article number	31
Journal	Hyperfine Interactions
Volume	239
Early online date	23 Jul 2018
DOIs	https://doi.org/10.1007/s10751-018-1501-7
Publication status	Published - 1 Dec 2018

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Berry_et_al_Magnetic_interactions_Hyperfine_InteractionsFinal published version, 1.45 MBLicence: Creative Commons: Attribution (CC BY)

Functional materials derived from the schafarzikite mineral framework
Greaves, C., Horswell, S. & Read, M.
Engineering & Physical Science Research Council
1/01/14 → 31/12/16
Project: Research Councils

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@article{a0f5158af467496889e8163a719aeeb5,

title = "Magnetic interactions in Fe1-xMxSb2O4, M = Mg, Co, deduced from M{\"o}ssbauer spectroscopy",

abstract = "Magnesium- and cobalt- substituted FeSb2O4, of composition Fe1−xMgxSb2O4 (x = 0.25, 0.50, 0.75) and Fe0.25Co0.75Sb2O4 have been examined by 57Fe M{\"o}ssbauer spectroscopy. The complex spectra recorded from the magnetically ordered materials are interpreted in terms of models in which the dominant magnetic interactions occur along the rutile-related chains of FeO6 octahedra in the magnetic structure of FeSb2O4. In materials of the type Fe1−xMgxSb2O4, the diamagnetic Mg2+ ions have no magnetic moment and behave as non-magnetic blocks which disrupt the magnetic interactions in the chains along the c-axis forming segments of iron-containing chains separated by Mg2+ ions. In Fe0.25Co0.75Sb2O4 the spectra are composed of components from different configurations of neighbouring Fe2+ and Co2+ ions.",

author = "Berry, {Frank J.} and {De Laune}, {Benjamin P.} and Colin Greaves and Hien-yoong Hah and Johnson, {Charles E.} and Johnson, {Jacqueline A.} and Saeed Kamali and Marco, {Jose F.} and Thomas, {Michael F.} and Whitaker, {Mariana J.}",

year = "2018",

month = dec,

day = "1",

doi = "10.1007/s10751-018-1501-7",

language = "English",

volume = "239",

journal = "Hyperfine Interactions",

issn = "0304-3843",

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TY - JOUR

T1 - Magnetic interactions in Fe1-xMxSb2O4, M = Mg, Co, deduced from Mössbauer spectroscopy

AU - Berry, Frank J.

AU - De Laune, Benjamin P.

AU - Greaves, Colin

AU - Hah, Hien-yoong

AU - Johnson, Charles E.

AU - Johnson, Jacqueline A.

AU - Kamali, Saeed

AU - Marco, Jose F.

AU - Thomas, Michael F.

AU - Whitaker, Mariana J.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Magnesium- and cobalt- substituted FeSb2O4, of composition Fe1−xMgxSb2O4 (x = 0.25, 0.50, 0.75) and Fe0.25Co0.75Sb2O4 have been examined by 57Fe Mössbauer spectroscopy. The complex spectra recorded from the magnetically ordered materials are interpreted in terms of models in which the dominant magnetic interactions occur along the rutile-related chains of FeO6 octahedra in the magnetic structure of FeSb2O4. In materials of the type Fe1−xMgxSb2O4, the diamagnetic Mg2+ ions have no magnetic moment and behave as non-magnetic blocks which disrupt the magnetic interactions in the chains along the c-axis forming segments of iron-containing chains separated by Mg2+ ions. In Fe0.25Co0.75Sb2O4 the spectra are composed of components from different configurations of neighbouring Fe2+ and Co2+ ions.

AB - Magnesium- and cobalt- substituted FeSb2O4, of composition Fe1−xMgxSb2O4 (x = 0.25, 0.50, 0.75) and Fe0.25Co0.75Sb2O4 have been examined by 57Fe Mössbauer spectroscopy. The complex spectra recorded from the magnetically ordered materials are interpreted in terms of models in which the dominant magnetic interactions occur along the rutile-related chains of FeO6 octahedra in the magnetic structure of FeSb2O4. In materials of the type Fe1−xMgxSb2O4, the diamagnetic Mg2+ ions have no magnetic moment and behave as non-magnetic blocks which disrupt the magnetic interactions in the chains along the c-axis forming segments of iron-containing chains separated by Mg2+ ions. In Fe0.25Co0.75Sb2O4 the spectra are composed of components from different configurations of neighbouring Fe2+ and Co2+ ions.

U2 - 10.1007/s10751-018-1501-7

DO - 10.1007/s10751-018-1501-7

M3 - Article

SN - 0304-3843

VL - 239

JO - Hyperfine Interactions

JF - Hyperfine Interactions

M1 - 31

ER -

Magnetic interactions in Fe1-xMxSb2O4, M = Mg, Co, deduced from Mössbauer spectroscopy

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Functional materials derived from the schafarzikite mineral framework

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Magnetic interactions in Fe_1-xM_xSb₂O₄, M = Mg, Co, deduced from Mössbauer spectroscopy