Pressure induced quantum criticality in iron-based superconductors

DOI

Unconventional superconductivity can be induced in the vicinity of quantum critical point as a consequence of suppression of long range magnetic ordering as function of control parameter. In the iron pnictide superconductors, there is growing evidence of unconventional superconductivity with unusual gap symmetry and phase coexistence close to the phase boundary between spin density wave (SDW) and superconductivity. Compositions that lie adjacent to this phase boundary are of great importance as they offer the possibility for enhanced or suppressed superconductivity or magnetism depending on what side they are on the phase diagram. In this proposed work, we wish to study the pressure effects on the structural properties and the possible induction of quantum criticality at the lowest base temperature possible.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24090505
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24090505
Provenance
Creator Dr Ray Osborn; Dr Stephan Rosenkranz; Dr Omar Chmaissem; Dr Sevda Avci; Mr Keith Taddei; Dr Jared Allred
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 2013-12-08T00:00:00Z