ISIS Neutron and Muon Source Data Journal

Magnetic Properties of Quaternary Selenides

Abstract: We will investigate magnetic ordering in Cu2MGeSe4 (M = Mn, Fe, Co), for which magnetic susceptibility data indicate a transition to antiferromagnetic order at temperatures in the range 10?20 K. The Mn- and Co-containing phases exhibit Curie-Weiss behaviour at high temperatures with effective magnetic moments in good agreement with spin-only values. The Fe analogue exhibits more complex behaviour with a second feature observed in the susceptibility below TN and a broad maximum in the high-temperature susceptibility, leading to non-Curie-Weiss behaviour. We seek to determine the magnetic structure for each phase, and its evolution with temperature, by collection of data at base temperature and on warming through TN. We will extend the collections to higher temperature for the Fe analogue to understand the origin of the different behaviour exhibited by this phase.

Local Contact: Dr Ronald Smith
Experimenter: Professor Anthony Powell
Experimenter: Mrs Alaa Aldowiesh
Experimenter: Dr Paz Vaqueiro-Rodriguez

DOI: 10.5286/ISIS.E.RB2200312

ISIS Experiment Number: RB2200312

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 Ronald Smith et al; (2023): Magnetic Properties of Quaternary Selenides, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2200312

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