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.
muSR Study on the Spin Dynamics of Hole-doped Organic Metal kappa-(ET)4Hg3-dCl8, d=22%
Abstract: The hole-doped organic metal kappa-(ET)4Hg3-dX8; X = Br, Cl are the exceptional carrier-doped metal among half-filled organics, besides ET dimers (S=½) tend to arrange triangular lattice. The k-HgBr compound undergoes a superconductor while the k-HgCl compound transitions to the insulator and becomes a superconductor under pressure. k-HgBr is proposed as a doped quantum spin liquid (QSL) from its spin susceptibility. Whereas the lattice of k-HgCl is less triangular from ZF-muSR we found a plateau and broad peak at 0.1 K in the temperature dependence of muon relaxation rate. The LF scan at several temperatures down to 0.3 K distinguished the behavior at low- and high-temperature regions just at the plateau around 6.5 K. The plateau itself coincides with the metal-insulator transition. Finer LF-scan below 6.5 K down to the base-temperature of the DR fridge will finalize the characterization of the ground state and spin dynamics of k-HgCl which we proposed involving a quantum critical metal at a higher temperature with charge fluctuations and quantum spin liquid.
Experimenter: Dr Wan Nurfadhilah Binti Zaharim
Experimenter: Dr Nurul Izzaty Hassan
Experimenter: Dr Dita Puspita Sari
Experimenter: Dr Francis Pratt
Experimenter: Dr Yasuyuki Ishii
Experimenter: Professor Hiromi Taniguchi
Experimenter: Dr Utami Widyaiswari
Experimenter: Mrs Anita Eka Putri
Experimenter: Dr Isao Watanabe
Local Contact: Dr Mark Telling
DOI: 10.5286/ISIS.E.RB2410666
ISIS Experiment Number: RB2410666
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2410666-1 | HIFI | 13 December 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 Wan Nurfadhilah Binti Zaharim et al; (2024): muSR Study on the Spin Dynamics of Hole-doped Organic Metal kappa-(ET)4Hg3-dCl8, d=22%, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2410666
Data is released under the CC-BY-4.0 license.
