Crystal structures and magnetic order in metal/ammonia intercalates of FeSe

DOI

This is a proposal to determine the magnetic structures of the Rb/NH3 and K/NH3 intercalates of FeSe. These compounds exhibit superconductivity when freshly prepared, but ambient temperature annealing results in the loss of superconductivity and the emergence of long range magnetic order and magnetic Bragg reflections not seen previously in relatives of the iron-based superconductors. We will examine samples derived from two K/ND3/FeSe compounds with different K contents and different superconducting Tcs and an annealed Rb/NH3/FeSe intercalate using low temperature high resolution powder diffraction. The aim is to relate the differences in magnetic ordering scheme to structural parameters and this experiment on WISH accompanies an investigation of the structures of these and related materials on GEM.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24091275
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24091275
Provenance
Creator Dr Simon Clarke; Dr Simon Cassidy; Dr Stefan Sedlmaier; Professor Stephen Blundell; Mr Richard Morris
Publisher ISIS Neutron and Muon Source
Publication Year 2016
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 Photon- and Neutron Geosciences
Temporal Coverage Begin 2013-07-22T09:11:20Z
Temporal Coverage End 2013-10-24T10:01:28Z