Crystal and magnetic structure of Dirac semimetal CuMnAs.

PID

The ternary semimetal CuMnAs is a half-Heusler alloy with antiferromagnetic order [1, 2] and it crystallizes orthorhombically in the space group Pnma (No. 62) Antiferromagnetic materials could represent future of spintronic applications due to numerous specific features and their combinations. Recently [3] it has been shown that in CuMnAs Dirac fermions could be present. Massless Dirac fermions were found to emerge as low-energy excitations in materials now known as Dirac semimetals. These semimetals have received an enormous amount of attention due to the wide range of exotic physical phenomena theoretically predicted [4]. The observation of fermions in a magnetically ordered material has a fundamental character. So far there are no experimental data on the magnetic structure of bulk orthorhombic CuMnAs and neutron diffraction studies will provide a picture of the magnetic ordering in this compound. The aim of the experiment is to get information on the magnetic structure of CuMnAs.

Identifier
PID https://hdl.handle.net/21.11151/659q-zdq1
Related Identifier IsCompiledBy https://doi.org/10.5442/NI000002
Metadata Access https://data.helmholtz-berlin.de/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:data.helmholtz-berlin.de:inv/6649
Provenance
Instrument E9 - Fine Resolution Powder Diffractometer (FIREPOD),
Publisher Helmholtz-Zentrum Berlin für Materialien und Energie
Contributor Gurieva, Galina; Nateprov, Alexandr; Helmholtz-Zentrum Berlin für Materialien und Energie
Publication Year 2023
Rights Creative Commons Zero v1.0 Universal; https://creativecommons.org/publicdomain/zero/1.0/
OpenAccess true
Representation
Resource Type Investigation; Collection
Size 240.11 MiB
Discipline Other
Temporal Coverage Begin 2018-07-24T06:00:00Z
Temporal Coverage End 2018-07-27T11:02:10Z