ISIS Neutron and Muon Source Data Journal

Coupling between magnons and phonons in multiferroic tellurides Co3TeO6 and Ni3TeO6

Abstract: The tellurides, M3TeO6, were recently reported as multiferroic The materials show complex behaviour with a series of commensurate and incommensurate antiferromagnetic phases below 60 K. In Co3TeO6, a dielectric anomaly is observed around 18 K, indicating a spontaneous polarization. Recent measurement at MARI gave good results, including signs of a low-energy spin wave cone. We intent to repeat this to obtain sufficient statistics and to measure a few additional temperatures to cover all magnetic phases. Ni3TeO6 shows commensurate antiferromagnetism but still strong magneto-electric coupling. Here, the MARI data showed clear magnetic excitations, including a peculiar signal at 10 meV, that we intent to study at higher resolution and at a few more temperatures. This study will elucidate the magnetoelectric coupling in the tellurides, and possibly a coupling between magnons and phonons.

Principal Investigator: Professor Kim Lefmann
Local Contact: Dr Tatiana Guidi
Experimenter: Dr Jakob Lass
Experimenter: Mr Christopher Røhl Andersen
Experimenter: Ms Ursula Bengaard Hansen
Experimenter: Dr Maria Retuerto
Experimenter: Dr Jon Taylor
Experimenter: Professor Martin Sahlberg
Experimenter: Dr Jonas Okkels Birk

DOI: 10.5286/ISIS.E.RB1610081

ISIS Experiment Number: RB1610081

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:
Professor Kim Lefmann et al; (2016): Coupling between magnons and phonons in multiferroic tellurides Co3TeO6 and Ni3TeO6, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610081

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