Crystal structure and monoclinic distortion of glaserite-type Ba3MnSi2O8
Field | Value | Language |
dc.contributor.author | Avdeev, Maxim | |
dc.contributor.author | Xia, Qingbo | |
dc.contributor.author | Sale, Matthew | |
dc.contributor.author | Allison, Morgan | |
dc.contributor.author | Ling, Chris D | |
dc.date.accessioned | 2022-07-22T00:05:42Z | |
dc.date.available | 2022-07-22T00:05:42Z | |
dc.date.issued | 2018 | en_AU |
dc.identifier.uri | https://hdl.handle.net/2123/29308 | |
dc.description.abstract | Crystal structure and magnetic properties of glaserite-type Ba3MnSi2O8 were investigated using variable temperature neutron powder diffraction and magnetometry. At room temperature the composition is hexagonal and the crystal structure is best described by the P-3m1 space group (a~5.7 Å, c~7.3Å) with the apical oxygen atom modelled on a split site. On cooling below ~250 K the structure undergoes a phase transition into a monoclinic C2/c form (√3ahex, ahex, 2chex, ~90°). Analysing diffraction data in terms of symmetry-adapted distortion modes suggests that the transition is primarily driven by increasing in-plane displacements of O1, which in turn results in the coupled tilting of [SiO4] and [MnO6] octahedra and in- plane displacements of Ba1 atoms. Magnetic susceptibility measurements and neutron powder diffraction data show no evidence for long-range magnetic ordering down to 1.6 K, although the development of magnetic diffuse scattering suggests that a magnetic transition may take place at lower temperature. | en_AU |
dc.language.iso | en | en_AU |
dc.publisher | Elsevier | en_AU |
dc.relation.ispartof | Journal of Solid State Chemistry | en_AU |
dc.rights | Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 | en_AU |
dc.subject | Crystal structure | en_AU |
dc.subject | Glaserite | en_AU |
dc.subject | Neutron diffraction | en_AU |
dc.subject | Phase transition | en_AU |
dc.title | Crystal structure and monoclinic distortion of glaserite-type Ba3MnSi2O8 | en_AU |
dc.type | Article | en_AU |
dc.subject.asrc | 0302 Inorganic Chemistry | en_AU |
dc.identifier.doi | 10.1016/j.jssc.2018.07.001 | |
dc.type.pubtype | Author accepted manuscript | en_AU |
dc.relation.arc | DP170100269 | |
dc.rights.other | © This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_AU |
usyd.faculty | SeS faculties schools::Faculty of Science::School of Chemistry | en_AU |
usyd.citation.volume | 266 | en_AU |
usyd.citation.spage | 1 | en_AU |
usyd.citation.epage | 8 | en_AU |
workflow.metadata.only | No | en_AU |
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