Investigation of antiferromagnetic long-range interactions in Co-based Heusler alloys

DOI

Ni-Mn based Heusler alloys with composition related to the stoichiometry Ni2MnX, with X belonging to the IIIA-VA chemical species, are widely considered as a class of multifunctional magnetic materials. This magnetic phenomenology is related to the martensitic transformation undergoing from ferromagnetic cubic austenite. Depending upon the chemical composition, different martensitic structures are stabilized showing strong lattice distortions. Recently in Co-doped Ni-Mn-Ga ternary Heusler alloys have shown that during martensitic transformation it is observed a drastic drop of the magnetization. Preliminary neutron diffraction experiments on Co-based Ni-Mn-Ga alloy provided clear evidence of a long-range antiferromagnetic ordering in the tetragonal martensite. We suggest to extend the structural study of AF long-range state to others Co-doped Ni-Mn-Ga and Ni-Mn-Sn compositions.

Identifier
DOI https://doi.org/10.5286/ISIS.E.83360422
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/83360422
Provenance
Creator Dr Fabio Orlandi; Dr Lara Righi; Dr Francesco Cugini
Publisher ISIS Neutron and Muon Source
Publication Year 2019
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 2016-11-17T08:00:00Z
Temporal Coverage End 2016-11-21T08:00:00Z