Unprecedented strong superexchange through one atom for a Ag(2+)-based 1D antiferromagnet

DOI

We propose to investigate AgFBF4, compound known for > 20 years, with inelastic neutron scattering. The scope is to determine the value of J for this Ag(2+)-based 1D antiferromagnet, which shows the shortest Ag-F bond length ever measured (30% larger than that measured for Sr2CuO3. The J values are usually reproduced with satisfactory accuracy at this level of calculations, for example the value computed for Sr2CuO3 is -253 meV (thus overestimated by < 5%). If our theoretical result is confirmed by experiment, fluoroargentates(II) would outperform isoelectronic oxocuprates(II) and rank second to none as far as the absolute value of J via 1 atom is considered. Simultaneously, AgFBF4 should be even more close to perfect 1D behaviour than Sr2CuO3.

Identifier
DOI https://doi.org/10.5286/ISIS.E.85008420
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/85008420
Provenance
Creator Professor Wojciech Grochala; Dr Russell Ewings; Dr Zoran Mazej; Dr Tatiana Guidi
Publisher ISIS Neutron and Muon Source
Publication Year 2020
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 2017-03-30T07:00:00Z
Temporal Coverage End 2017-03-31T07:00:00Z