Crystal structure and magnetic modulation in beta-Ce2O2FeSe2

We report a combination of X-ray and neutron diffraction studies, Mössbauer spectroscopy and muon spin relaxation (μ+SR) measurements to probe the structure and magnetic properties of the semiconducting β-Ce2O2FeSe2 oxychalcogenide. We report a new structural description in space group Pna21 which i...

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Main Authors: Wang, C, Ainsworth, C, Champion, S, Stewart, G, Worsdale, M, Lancaster, T, Blundell, S, Brand, H, Evans, J
Format: Journal article
Published: American Physical Society 2017
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author Wang, C
Ainsworth, C
Champion, S
Stewart, G
Worsdale, M
Lancaster, T
Blundell, S
Brand, H
Evans, J
author_facet Wang, C
Ainsworth, C
Champion, S
Stewart, G
Worsdale, M
Lancaster, T
Blundell, S
Brand, H
Evans, J
author_sort Wang, C
collection OXFORD
description We report a combination of X-ray and neutron diffraction studies, Mössbauer spectroscopy and muon spin relaxation (μ+SR) measurements to probe the structure and magnetic properties of the semiconducting β-Ce2O2FeSe2 oxychalcogenide. We report a new structural description in space group Pna21 which is consistent with diffraction data and second harmonic generation measurements and reveal an order-disorder transition on one Fe site at TOD ≈ 330 K. Susceptibility measurements, Mössbauer and μ+SR reveal antiferromagnetic ordering below TN = 86 K and more complex short range order above this temperature. 12 K neutron diffraction data reveal a modulated magnetic structure with q = 0.444 bN*
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spelling oxford-uuid:bd41ea6c-6bbb-4599-9790-1bd3e928a2ac2022-03-27T05:30:25ZCrystal structure and magnetic modulation in beta-Ce2O2FeSe2Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bd41ea6c-6bbb-4599-9790-1bd3e928a2acSymplectic Elements at OxfordAmerican Physical Society2017Wang, CAinsworth, CChampion, SStewart, GWorsdale, MLancaster, TBlundell, SBrand, HEvans, JWe report a combination of X-ray and neutron diffraction studies, Mössbauer spectroscopy and muon spin relaxation (μ+SR) measurements to probe the structure and magnetic properties of the semiconducting β-Ce2O2FeSe2 oxychalcogenide. We report a new structural description in space group Pna21 which is consistent with diffraction data and second harmonic generation measurements and reveal an order-disorder transition on one Fe site at TOD ≈ 330 K. Susceptibility measurements, Mössbauer and μ+SR reveal antiferromagnetic ordering below TN = 86 K and more complex short range order above this temperature. 12 K neutron diffraction data reveal a modulated magnetic structure with q = 0.444 bN*
spellingShingle Wang, C
Ainsworth, C
Champion, S
Stewart, G
Worsdale, M
Lancaster, T
Blundell, S
Brand, H
Evans, J
Crystal structure and magnetic modulation in beta-Ce2O2FeSe2
title Crystal structure and magnetic modulation in beta-Ce2O2FeSe2
title_full Crystal structure and magnetic modulation in beta-Ce2O2FeSe2
title_fullStr Crystal structure and magnetic modulation in beta-Ce2O2FeSe2
title_full_unstemmed Crystal structure and magnetic modulation in beta-Ce2O2FeSe2
title_short Crystal structure and magnetic modulation in beta-Ce2O2FeSe2
title_sort crystal structure and magnetic modulation in beta ce2o2fese2
work_keys_str_mv AT wangc crystalstructureandmagneticmodulationinbetace2o2fese2
AT ainsworthc crystalstructureandmagneticmodulationinbetace2o2fese2
AT champions crystalstructureandmagneticmodulationinbetace2o2fese2
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AT worsdalem crystalstructureandmagneticmodulationinbetace2o2fese2
AT lancastert crystalstructureandmagneticmodulationinbetace2o2fese2
AT blundells crystalstructureandmagneticmodulationinbetace2o2fese2
AT brandh crystalstructureandmagneticmodulationinbetace2o2fese2
AT evansj crystalstructureandmagneticmodulationinbetace2o2fese2