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.
Emerging quantum spin liquid state in a molecular rotor system
Abstract: Large quantum fluctuations might drive magnetic systems to disordered phases even at low temperatures. Recently, a few two-dimensional spin-1/2 systems have been realized in which the isotropic triangular lattice results in the emergence of the quantum spin liquid state.We investigate the spin state of a layered organic material, (EDT-TTF-CONH2)2+[BABCO]- by multi-frequency electron spin resonance measurements. The (EDT-TTF-CONH2)2+ sites form a closely isotropic triangular lattice, and the Brownian motion of the molecular rotor BABCO- layers provoke large dipole fluctuations. We found no indication of magnetic ordering or spin freezing down to 1.5 K. Our results suggest that, due to the intrinsic disorder, a unique QSL state is formed. To verify the absence of the ordering, we intend toperform high-precision muon spin rotation experiments down to 30 mK in low magnetic fields.
Principal Investigator: Dr Balint Nafradi
Local Contact: Dr Fiona Coomer
Experimenter: Dr Péter Szirmai
DOI: 10.5286/ISIS.E.RB1610181
ISIS Experiment Number: RB1610181
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.79111141 | HIFI | 20 May 2019 | 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 Balint Nafradi et al; (2016): Emerging quantum spin liquid state in a molecular rotor system, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610181
Data is released under the CC-BY-4.0 license.
