Chemically Tailorable Frustrated Systems:Magnetic order of isostructural A2M2(C2O4)F4 (A=NH4+, Cs+) (M=Co2+, Mn2+)

DOI

This proposal forms part of an exploratory study of new mixed anion coordination compounds, in particular oxalate-fluorides, which are anticipated to have frustrated magnetic properties due to competing interactions. Two of these compounds have composition A2M2(C2O4)F4, where A =NH4 or Cs; M = Co or Mn. They have a complex crystal structure based on a 'corrugated' square metal fluoride net, bridged by oxalate anions. The NH4/Co and Cs/Mn samples are isostructural at ambient T, but the former shows a structural transiton around 100K, which apparently correlates with an abrupt change in magnetic susceptibility. In contrast, the Cs/Mn sample shows a transition to long-range magnetic order near 70 K, without a structural phase transition. The aim of this experiment is to probe the magnetic ordering of both samples, in order to correlate this with thedifferences in composition and structure

Identifier
DOI https://doi.org/10.5286/ISIS.E.RB2010423-1
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/109980713
Provenance
Creator Miss Ceng Han; Dr Ron Smith; Mr Alasdair Bradford; Professor Steve Lee; Professor Phil Lightfoot; Mr Teng Li
Publisher ISIS Neutron and Muon Source
Publication Year 2023
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Chemistry; Natural Sciences; Physics
Temporal Coverage Begin 2020-03-06T08:30:00Z
Temporal Coverage End 2020-03-09T11:43:22Z