: Investigation of collective magnetic excitations in Kondo insulator: CeFe2Al10

DOI

: Recently the Kondo insulators CeT2Al10 (T=Fe, Ru and Os) have attracted considerable attention. T=Ru and Os order AFM below 29 K, while T=Fe remains paramagnetic. At low temperature, CeFe2Al10 reveals an opening of a small energy gap in the electronic density of states near Fermi-energy. We have investigated the magnetic excitations in CeT2Al10 (T=Fe, Ru and Os) compounds using MERLIN (see Ref.10). We have also developed an ab-initio theoretical framework using three tier quasi-particle self consistent GW (QSGW)+ dynamical mean field theory (DMFT)+ solution of Bethe Salpeter equations (BSE) to compute vertex corrected spin fluctuation spectrum in CeFe2Al10. We have very good data in the ab-plane, however the data along [0 0 L] are not enough to make direct comparison with the theory. We therefore propose to investigate a detailed excitations along [0 0 L] in CeFe2Al10 on MERLIN.

Identifier
DOI https://doi.org/10.5286/ISIS.E.RB1920755-1
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/107271571
Provenance
Creator Dr Devashi Adroja; Professor Mark van Schilfgaarde; Dr Yuji Muro; Dr Swagata Acharya; Dr Helen Walker; Professor Toshiro Takabatake
Publisher ISIS Neutron and Muon Source
Publication Year 2022
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 2019-10-04T07:44:32Z
Temporal Coverage End 2019-10-10T07:41:10Z