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.

ISIS Neutron and Muon Source

ISIS Neutron and Muon Data

Completing the phase diagram of a 2D molecular antiferromagnet

Data collected on the
MUSR instrument
at the ISIS facility

Abstract: Low-dimensional quantum magnetism continues to be of great theoretical and experimental interest as reduced dimensionality supports strong quantum fluctuations which can result in novel excitations and critical behaviour. Here we propose to complete an investigation of the phase diagram of a series of molecular 2D quantum Heisenberg antiferromagnets with random exchange strengths. This is a project started at PSI by Dr Fan Xiao, where materials from the series (QuinH)2Cu(Br(1-x)Clx)4.2H2O with x < 0.5 were successfully measured. Our recent measurement at ISIS has shown magnetic order in the x=1 member of the series, but the nature of the signal brings into question whether the system is ever quantum disordered. We now seek to measure two final compounds with high Cl concentrations in order to complete our investigation of the phase diagram of the system.

Public release date: 12 October 2022

Principal Investigator: Professor Tom Lancaster
Local Contact: Dr Mark Telling
Experimenter: Dr Francis Pratt
Experimenter: Dr Fan Xiao
Experimenter: Dr Paul Goddard
Experimenter: Dr Kevin Franke
Experimenter: Dr Benjamin Huddart
Experimenter: Professor Stephen Blundell
Experimenter: Dr Thomas Hicken
Local Contact: Dr Peter Baker
Experimenter: Mr William Blackmore
Experimenter: Dr Murray Wilson

DOI: 10.5286/ISIS.E.RB1810310-2

Parent DOI: 10.5286/ISIS.E.RB1810310

ISIS Experiment Number: RB1810310

Part Number: 2

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the dataset

Date of Experiment: 10 October 2019

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Tom Lancaster et al; (2019): Completing the phase diagram of a 2D molecular antiferromagnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810310-2

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