ISIS Neutron and Muon Source Data Journal

muSR study of a pi-electron S = ½ candidate quantum spin-liquid state in an ionic polyaromatic hydrocarbon (PAH)

Abstract: Molecular solids whose cooperative electronic properties are based purely on pi-electrons from carbon atoms offer a fertile ground in the search for exotic states of matter, including unconventional superconductivity and quantum magnetism. The binary caesium salt of phenanthrene, Cs(C14H10) is a Heisenberg antiferromagnet with a candidate gapped spin-liquid state emerging from the highly-frustrated Delta-chain magnetic topology of coupled alternating-exchange spiral tubes of S=½ (C14H10)•- radical anions. The absence of long-range magnetic order down to 1.8 K (T/J~0.02) renders the compound an excellent candidate of a spin-½ quantum spin liquid arising purely from carbon pi-electrons. With this proposal we want to address the nature of the magnetic state down to mK temperatures using the ZF/LF muSR techniqueand search for the emergence or not of long-range antiferromagnetic order.

Principal Investigator: Professor Kosmas Prassides
Experimenter: Dr Yasuhiro Takabayashi
Local Contact: Dr Peter Baker

DOI: 10.5286/ISIS.E.RB1710187

ISIS Experiment Number: RB1710187

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:
Professor Kosmas Prassides et al; (2017): muSR study of a pi-electron S = ½ candidate quantum spin-liquid state in an ionic polyaromatic hydrocarbon (PAH), STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1710187

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