ISIS Neutron and Muon Source Data Journal

Muon-spin relaxation measurements on a spin ½ dimer chain compound to probe magnetic long range order and spin gap variation

Abstract: The quantum critical properties of spin ½ dimer chains near magnetic-field-induced quantum phase transitions can be studied using muon spin relaxation measurements. Dimer system's ground state is a singlet spin state with a gap opening between singlet-triplet excitation. The heat study of (C8H16Cu2O10)shows an anomaly around 20 K and hence need further investigations. Spin dynamics of the elementary excitation particles of dimer can be probed to investigate the presence of long-range ordering and dynamical spin fluctuations to understand the emerging phases. In order to draw a quantum phase diagram of the dimer material (C8H16Cu2O10), we want to measure the zero-field (ZF) and longitudinal field (LF) dependent muon spin relaxation to investigate the long-range order, if it exits as seen in the heat capacity, down to 2 K, as well as the estimation of the spin gap from the temperature dependence of the ZF-relaxation rate and spin-spin correlation time from the LF-relaxation rate.

Experimenter: Ms Athira Suresh
Experimenter: Mr Sharath Kumar Chanarayappa
Local Contact: Dr James Lord
Experimenter: Dr Devashi Adroja
Experimenter: Dr Deepshikha Jaiswal Nagar

DOI: 10.5286/ISIS.E.RB2310696

ISIS Experiment Number: RB2310696

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:
Ms Athira Suresh et al; (2023): Muon-spin relaxation measurements on a spin ½ dimer chain compound to probe magnetic long range order and spin gap variation, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310696

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