On the inhomogeneous ground state of the two-dimensional frustrated antiferromagnet a-NaMnO2: a single crystal study

DOI

The layered NaMnO2 is challenging as it is an experimental realization of a two-dimensional spin-2, spatially anisotropic triangular lattice, where the interplay of temperature and strong conflicting interactions, stimulates a remarkable inhomogeneous magnetic ground state. The proposed neutron diffraction experiment will utilize a single crystal specimen that has recently been grown at Warwick to study how the ground state degeneracy of NaMnO2 is lifted. The unusual short-range order that precedes the low-temperature transformation to an antiferromagnetic state and its coexistence with low-dimensional magnetic correlations will be studied to allow a greater insight on the origin of inhomogeneity. Subsequently, its sensitivity to small perturbations that could favor certain states among the degenerate ground-state manifold, will be investigated by a moderate external magnetic field.

Identifier
DOI https://doi.org/10.5286/ISIS.E.84779036
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/84779036
Provenance
Creator Ms Eleni Aza; Dr Monica Ciomaga Hatnean; Professor Geetha Balakrishnan; Dr Fabio Orlandi; Dr Alexandros Lappas
Publisher ISIS Neutron and Muon Source
Publication Year 2020
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 2017-02-15T08:00:00Z
Temporal Coverage End 2017-02-18T08:00:00Z