ISIS Neutron and Muon Source Data Journal

Impurity substitution effect on magnetic orderings in frustrated triangular lattice multiferroic delafossite AgFe1-xAlxO2

Abstract: We propose to perform neutron powder diffraction experiments on the frustrated triangular lattice anitferromagnet AgFe1-xAlxO2 on WISH. Recently, we have studied magnetic orderings and dielectric properties in the undoped AgFeO2, which exhibits cycloid magnetic ordering concomitant with a ferroelectric polarization. [N. Terada et. al, PRL 109 097203 (2012)] The polarization can be understood by the extended inverse Dzyaloshinskii-Moriya mechanism. For further understanding of the theory, additional experimental facts to compare different magnetic orderings with ferroelectricity are necessary. The doped systems can be expected to show drastic change in magnetic ordering/symmetry due to disturbing delicate balance of strongly frustrated exchange interactions in AgFeO2. In this study, we would like to investigate how magnetic orderings are changed by nonmagnetic impurity doping.

Principal Investigator: Dr Noriki Terada
Experimenter: Dr Dmitry Khalyavin
Experimenter: Dr Pascal Manuel
Experimenter: Dr Alexei Belik

DOI: 10.5286/ISIS.E.RB1520241

ISIS Experiment Number: RB1520241

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Noriki Terada et al; (2015): Impurity substitution effect on magnetic orderings in frustrated triangular lattice multiferroic delafossite AgFe1-xAlxO2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520241

Data is released under the CC-BY-4.0 license.