Spin Wave Dispersion in BaFe2As2

DOI

Understanding the magnetic exchange coupling and fundamental Hamiltonian of the parent compound of FeAs-based superconductors is extremely important, because such information will lay the foundation from which superconductivity induced changes can be investigated. For example, it is well known that spin waves in the parent compound of cuprates can be described very well by local moment Heisenberg Hamiltonian. Since the parent compound of FeAs-based superconductors are semimetals, much has been debated about the microscopic origin of the magnetism in these materials. We propose an experiment on MAPS focused on measuring the low temperature spin-wave dispersion in the HHL zone of the non-superconducting parent BaFe2As2. Such a study will also probe the lattice effect on magnetic exchange couplings along the c-axis.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24079676
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24079676
Provenance
Creator Professor Pengcheng Dai; Dr Oliver Lipscombe; Dr Leland Harriger
Publisher ISIS Neutron and Muon Source
Publication Year 2013
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 2010-04-29T07:45:07Z
Temporal Coverage End 2010-05-24T01:57:23Z