Completing the Magnetic Ordering-Crystal Structure Phase Diagram of Superconducting Parent Compound Fe(1+x)Te

DOI

The key objective is to measure three samples of composition Fe(1.05)Te, Fe(1.12)Te, and Fe(1.14)Te as a function of temperature (base to 80 K) through their magnetic ordering and crystallographic transitions. The iron tellurides are superconducting parent compounds with large moment on the iron site. We have recently done work on 19 different samples of Fe(1+x)Te to map out how the magnetic propagation vector changes as a function of interstitial iron, x. We would like to use the High-Resolution Powder Diffractomer (HRPD) to follow the crystal structure of three points on the phase diagram. We have chosen the two extremes, x = 5% and 14%, along with a special concentration, x = 12%, that leads to crystallographic phase separation. Spallation source neutrons along with the high-resolution of HRPD would allow us to obtain accurate structural information on the most important points.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24087897
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24087897
Provenance
Creator Mr Mark Green; Dr Chris Stock; Dr Efrain Rodriguez
Publisher ISIS Neutron and Muon Source
Publication Year 2015
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 2011-10-07T08:04:25Z
Temporal Coverage End 2012-05-18T07:54:05Z