Competing degenrate magnetic states in Ba1-xNaxFe2As2

DOI

Magnetic and superconducting ground states have been proposed to coexist in a relatively narrow compositional range in the so-called 122 pnictide superconductors. We recently demonstrated their microscopic coexistence in Ba1-xKxFe2As2 (data collected on HRPD - two papers published in PRB). Furthermore, we recently collected data on WISH (Dec 2011) and observed an unexpected structural phase transition for Ba1-xNaxFe2As2 within a similar narrow coexistence regime. A tetragonal - orthorhombic - tetragonal sequence of structural transitions has been observed in addition to a new magnetic ground state hosted by the low tetragonal structure. Theoretical collaborations have been made and the theory was expanded to explain this novel degenerate phase. The theory predicts the exsitence of a novel sub-phase diagram that we wish to explore through this proposal. A total of 6-7 samples to run

Identifier
DOI https://doi.org/10.5286/ISIS.E.24090619
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24090619
Provenance
Creator Dr Ray Osborn; Dr Stephan Rosenkranz; Dr Omar Chmaissem; Dr Jared Allred; Mr Keith Taddei
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 2013-05-21T23:00:00Z
Temporal Coverage End 2013-05-28T09:12:06Z