High-pressure single-crystal neutron diffraction

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dc.contributor.authorMcIntyre, GJen_AU
dc.contributor.authorBinns, Jen_AU
dc.contributor.authorParsons, Sen_AU
dc.date.accessioned2021-12-20T03:37:47Zen_AU
dc.date.available2021-12-20T03:37:47Zen_AU
dc.date.issued2017-02-03en_AU
dc.date.statistics2021-10-11en_AU
dc.description.abstractHigh-pressure neutron diffraction is always challenging, but it can offer several advantages over high-pressure X-ray diffraction to make meeting those challenges worthwhile. In addition to the usual higher sensitivity to low-X elements, notably hydrogen, and to magnetic moments, the low absorption by many pressure cell materials can yield greater reciprocal space coverage for single crystals. The low scattering power usually requires considerably larger sample volumes than with X-rays, but for the same reason the cell-wall materials can be quite thick. Common cell designs include He-gas cells and simple clamp cells, opposed piston cells (e.g. Bloch, McWhan), opposed-anvil cells (e.g. diamond anvil cell, Paris-Edinburgh cell), and multi-anvil cells, each adapted to sample volume, accessibility, pressure, and other external parameters, especially temperature, that suit the scientific question of interest. State-of-the-art experiments using each cell type will be described. A special challenge in high-pressure diffraction is to perform neutron and X-ray experiments on the same material under the same conditions. Previously, this meant using different cells and samples with achieving identical pressures largely a hit-or-miss affair. This has all changed with the recent demonstration on KOALA on the OPAL research reactor that modern neutron Laue diffraction can be performed on the same sample in the same diamond-anvil cell as used for laboratory X-ray experiments [1].en_AU
dc.identifier.citationMcIntyre, G. J., Binns., J., & Parsons, S. (2017). High-pressure single-crystal neutron diffraction. Poster presented to the 41st Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, Australia, 31st January - 3rd February 2017, (pp. 92). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate3 February 2017en_AU
dc.identifier.conferencenameAustralian and New Zealand Institutes of Physics 41st Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate31 January 2017en_AU
dc.identifier.otherTP16en_AU
dc.identifier.pagination92en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12576en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectPressure range mega pa 10-100en_AU
dc.subjectCrystalsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectScatteringen_AU
dc.subjectMaterialsen_AU
dc.subjectHydrogenen_AU
dc.subjectMagnetic momentsen_AU
dc.subjectAbsorptionen_AU
dc.subjectReactor cellsen_AU
dc.subjectPistonsen_AU
dc.titleHigh-pressure single-crystal neutron diffractionen_AU
dc.typeConference Posteren_AU
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