ISIS Neutron and Muon Source Data Journal
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.
Excitations of the highly-frustrated centred-pyrochlore lattice magnet Mn(ta)2
Abstract: The centred pyrochlore lattice is extremely highly frustrated lattice, and we have recently shown that it has a spin liquid phase even more degenerate than the canonical pyrochlore and kagome lattices when considering nearest and next nearest neighbour Heisenberg interactions . It also also is described by an emergent Coulomb gauge field theory coupled to gauge charges, that can be seen as a "three-dimensional slab" of a four-dimensional structure. We have recently uncovered the first example of a material that realises this model: the metal-organic framework Mn(II) triazolate (Mn(ta)2). Mn(ta)2 is highly frustrated (T_CW/Tc ~ 50, Tc = 430 mK) and bulk property measurements suggest this material will have a spin liquid phase around 1-2K before ordering into its ground state. We therefore propose to carry out the first neutron spectroscopy study of this lattice: determining the spin Hamiltonian parameters from the ground state spin waves and measuring the spin liquid excitations to compare with our extensive theory.
Principal Investigator: Dr Matthew Cliffe
Experimenter: Dr Rinku Kushwaha
Experimenter: Mr Jordan James
Experimenter: Dr Ludovic Jaubert
Experimenter: Mr Rajah Nutakki
Experimenter: Professor Alexander Tsirlin
Local Contact: Dr Ross Stewart
Experimenter: Professor Dirk Volkmer
Experimenter: Dr Luis Leon Alcaide
DOI: 10.5286/ISIS.E.RB2410183
ISIS Experiment Number: RB2410183
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2410183-1 | LET | 25 May 2027 | Download |
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 Matthew Cliffe et al; (2026): Excitations of the highly-frustrated centred-pyrochlore lattice magnet Mn(ta)2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2410183
Data is released under the CC-BY-4.0 license.
