Phase stability of the layered oxide, Ca2Mn3O8: probing the pressure-temperature phase diagram

Journal article


Vera-Stimpson, L., Etherdo-Sibley K. J., Ridley C. J., Bull C. L. and Arnold D. C 2020. Phase stability of the layered oxide, Ca2Mn3O8: probing the pressure-temperature phase diagram. Materials Advances. 1 (6), pp. 1841 - 1848. https://doi.org/10.1039/D0MA00464B
AuthorsVera-Stimpson, L., Etherdo-Sibley K. J., Ridley C. J., Bull C. L. and Arnold D. C
Abstract

We have performed high–pressure neutron diffraction studies on the layered oxide, Ca2Mn3O8. Studies up to approximately 6 GPa at temperatures of 120 and 290K demonstrate that there are no structural phase transitions within this pressure range. Fits of the unit–cell volume to a Birch-Murngaham equation of state give values for the bulk modulus of 137(2) GPa and 130(2) GPa at temperatures of 290K and 120K respectively suggesting that Ca2Mn3O8 is more compressible at lower temperature. Compression along the principle axes are anisotropic on the local scale with comparison of individual bond lengths and bond angle environments demonstrating that compression is complex and likely results in a shearing of the layers.

KeywordsCa2MnO8; High pressure; Phase diagram
Year2020
JournalMaterials Advances
Journal citation1 (6), pp. 1841 - 1848
PublisherRoyal Society of Chemistry
ISSN2633-5409
Digital Object Identifier (DOI)https://doi.org/10.1039/D0MA00464B
Official URLhttp://doi.org/10.1039/D0MA00464B
Publication dates
Online05 Aug 2020
Publication process dates
Accepted02 Aug 2020
Deposited18 Nov 2020
Accepted author manuscript
License
File Access Level
Open
Output statusPublished
Permalink -

https://repository.canterbury.ac.uk/item/8wv08/phase-stability-of-the-layered-oxide-ca2mn3o8-probing-the-pressure-temperature-phase-diagram

Download files


Accepted author manuscript
  • 1
    total views
  • 0
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

A comprehensive variable temperature study of the layered oxide Ca2Mn3O8
Vera-Stimpson, L.J., McNulty, J.A., Morrison, F.D., Mahajan, A., McCabe, E.E., Gibbs, A.S., Stenning, G.B.G., Jura, M. and Arnold, D.C. 2020. A comprehensive variable temperature study of the layered oxide Ca2Mn3O8. Journal of Alloys and Compounds. https://doi.org/10.1016/j.jallcom.2020.155633
Spin-glass behavior in KxRu4-yNiyO8 hollandite materials
Vera-Stimpson, L. 2018. Spin-glass behavior in KxRu4-yNiyO8 hollandite materials. Physical Review B (PRB). 98 (17). https://doi.org/10.1103/PhysRevB.98.174429
PZT-like structural phase transitions in the BiFeO3-KNbO3 solid solution
Lennox, R., Taylor, D., Vera-Stimpson, L., Stenning, G., Jura, M., Price, M., Rodriguez, E. and Arnold, D. 2015. PZT-like structural phase transitions in the BiFeO3-KNbO3 solid solution. Dalton Transactions. https://doi.org/10.1039/C5DT00140D
Investigation of the role of morphology on the magnetic properties of Ca2Mn3O8 materials
Vera-Stimpson, L., Ramos, S., Stenning, G., Jura, M. and Arnold, D. 2017. Investigation of the role of morphology on the magnetic properties of Ca2Mn3O8 materials. Dalton Transactions. 41. https://doi.org/10.1039/C7DT03053C
Magnetic ordering in a frustrated bow-tie lattice
Vera-Stimpson, L., Rodriguez, E., Brown, C., Stenning, G., Jura, M. and Arnold, D. 2018. Magnetic ordering in a frustrated bow-tie lattice. Journal of Materials Chemistry C. https://doi.org/10.1039/C7TC05187E