Investigation of modulated crystal and magnetic structure of Ni-Pt-Mn-Ga ferromagnetic shape memory alloys

DOI

Ferromagnetic shape memory alloys (FSMAs) are of recent interest because they exhibit a shapememory effect that can be driven by magnetic fields. Thus, FSMAs are important for practicalapplications since the actuation is faster than the conventional SMA driven by temperature orstress. Although Ni2MnGa shows largest magnetic field induced strain (~10%), but its brittlenessand low transition temperature have necessitated the search for new alloys with similar MFIS withhigher transition temperatures and ductility. Our initial work indicates that the Pt doped Ni-Mn-Gacan be good alternative to the Ni2MnGa. The large MFIS in Ni2MnGa is related to the modulatedstructure, which is also expected for Pt doped Ni-Mn-Ga. Our aim is to investigate the modulatedcrystal and magnetic structure and the origin of modulation in Ni-Pt-Mn-Ga, which may providevaluable input to design new FSMA's.

Identifier
DOI https://doi.org/10.5286/ISIS.E.82354239
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/82354239
Provenance
Creator Dr Mahdiyeh Ghorbani Zavareh; Dr Jayita Nayak; Dr Sanjay Singh; Dr Alexandra Gibbs
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 Natural Sciences; Physics
Temporal Coverage Begin 2016-10-25T07:00:00Z
Temporal Coverage End 2016-10-28T07:00:00Z