Quantum Criticality in YFe2Al10

DOI

Quantum phase transitions, where correlation length and time scales diverge, are of broad interest to the condensed matter physics community. The new layered material YFe2Al10 shows remarkably strong quantum critical (QC) behavior with no signature of magnetic order down to a temperature of 0.020 K. We propose to use the OSIRIS instrument to probe the low energy magnetic excitations in YFe2Al10 to determine the details of the energy and temperature dependence of these QC fluctuations. Existing measurements hint at local QC behavior with a separability of the energy and momentum dependencies and scaling of the fluctuations with energy and temperature, an important result given the connection between quantum criticality and superconductivity in the Fe-As compounds. OSIRIS is perfect for measuring the low energy spectrum in YFe2Al10 and will shed light on this novel QC material.

Identifier
DOI https://doi.org/10.5286/ISIS.E.67775390
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/67775390
Provenance
Creator Dr Franz Demmel; Dr Liusuo Wu; Dr William Gannon; Dr Igor Zaliznyak; Professor Meigan Aronson
Publisher ISIS Neutron and Muon Source
Publication Year 2018
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 Natural Sciences; Physics
Temporal Coverage Begin 2015-11-12T09:00:00Z
Temporal Coverage End 2015-11-21T09:00:00Z