ISIS Neutron and Muon Source Data Journal

Evolution of magnetic ordering in three oxide arsenides containing CrO2 layers: Ba2Cr2MnAs2O2, Sr2CrMn2As2O2 and Sr2Cr2MnAs2O2

Abstract: This experiment will probe the evolution of magnetic ordering in compounds with square planar Cr2+ ions in CrO2 oxide layers, and the interaction of these moments with Mn2+ and Cr2+ moments in the intervening (Cr0.5Mn0.5)As or MnAs arsenide layers. The compounds will be compared with the isostructural Ba2Cr3As2O2 and Sr2Cr3As2O2 which have spin reorientation transitions at ~ 300 K due to interplay of the two Cr2+ sublattices. Preliminary single-temperature measurements have been used to examine the obvious question of Cr/Mn order vs disorder showing that Cr2+ is the sole occupant of the oxide layer in all three cases. These measurements furthermore show that all three compounds show magnetic long range order, and the ordered models are different. Thus a full variable temperature probing of magnetic long range order is required.

Principal Investigator: Dr Simon Clarke
Local Contact: Dr Fabio Orlandi
Experimenter: Mr Xiaoyu Xu
Experimenter: Dr Simon Cassidy
Experimenter: Ms Cristina Castro Vargas
Experimenter: Dr Danny Woodruff
Experimenter: Mr Jack Blandy

DOI: 10.5286/ISIS.E.RB1720097

ISIS Experiment Number: RB1720097

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 Simon Clarke et al; (2018): Evolution of magnetic ordering in three oxide arsenides containing CrO2 layers: Ba2Cr2MnAs2O2, Sr2CrMn2As2O2 and Sr2Cr2MnAs2O2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720097

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