ISIS Neutron and Muon Source Data Journal

Mechanical disorder-induced quantum spin liquid in a two-dimensional triangular lattice

Abstract: The quantum spin liquid (QSL) state is one of the possible outcomes of quantum fluctuations advancing magnetic systems into a disordered phase. After more than 30 years of quest for the QSL state, a few examples have been realized. In these systems, the role of quenched disorder turns out to be vital for the survival of an unordered state. We propose muon spin rotation experiments in a new QSL candidate. In this layered organic system, the magnetic layer forms two-dimensional triangular lattice with spin-1/2. The triangular layers are separated by molecular rotors. Their Brownian rotation is prohibited at high temperatures. Below 130 K, however, the motion of the rotor is re-established resulting in electric dipole fluctuations, and destroying the formation of the antiferromagnetically ordered state. Our electron spin resonance study was unable to identify magnetic ordering.

Principal Investigator: Dr Balint Nafradi
Local Contact: Dr Stephen Cottrell
Experimenter: Dr Péter Szirmai

DOI: 10.5286/ISIS.E.RB1620373

ISIS Experiment Number: RB1620373

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): Mechanical disorder-induced quantum spin liquid in a two-dimensional triangular lattice, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620373

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