This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Neutron Diffraction study of a frustrated garnet compound Mn3CrGaGe3O12
Abstract: In our recent work, we reported a detailed study of a frustrated garnet compound Mn3Cr2Ge3O12, where the Cr3+ and Mn2+ sub-lattices order independently at TN1 ? 4.6 K and TN2 ? 2.7 K, respectively. However, the interaction between the sub-lattices was not understood very well. In order to have a better understanding of the spin-lattice, we diluted the Cr site by non-magnetic Ga (Mn3CrGaGe3O12) assuming that it will impact both the orderings as well as the inter-sublattice interactions. From the magnetization and heat capacity data, it is clearly evident that Mn3CrGaGe3O12 has two transitions at TN1 ? 3.9 K and TN2 ? 1.8 K similar to Mn3Cr2Ge3O12. In a magnetic field of about 1 T, TN2 is completely suppressed while TN1 almost remains unperturbed even at 8 T. This behaviour is completely opposite to that observed in Mn3Cr2Ge3O12 where TN1 is completely suppressed at 1 T while TN2 remains unchanged even at 9 T. Hence, it is interesting to see which transition is affected due to non-magnetic substitution at the Cr3+ site and how the inter-sublattice interactions play the role in stabilizing the ground state and the field induced states. In order to have a clear understanding of the ground state and magnetic interactions in this compound, we propose to do powder neutron diffraction experiments in zero-field at several temperatures below and above TN1 and TN2 in WISH spectrometer.
Principal Investigator: Dr Ramesh Nath
Experimenter: Miss Akshata Ramakant Magar
Experimenter: Mr Surya Mohanty
Local Contact: Dr Ivan da Silva Gonzalez
DOI: 10.5286/ISIS.E.RB2420029
ISIS Experiment Number: RB2420029
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.RB2420029-1 | GEM | 14 May 2028 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
Select the data format above to find
out more about it.
Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Dr Ramesh Nath et al; (2025): Neutron Diffraction study of a frustrated garnet compound Mn3CrGaGe3O12, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2420029
Data is released under the CC-BY-4.0 license.