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.
Temperature depedent crystal strcture to study Ni-Ni dimerization in a one-dimensional PbCd2Ni6Te3O18
Abstract: Recently one-dimensional (1D) spin-chain systems have attracted considerable attention due to the possibility of Haldane gap formation for an integer spin system. The compounds PbCd2Ni6Te3O18 (M = Cd and Mn), having quasi-1D chains of Ni2+ (S=1) and Mn2+ (S=5/2) in their crystal structure, exhibit remarkably interesting magnetic properties. The susceptibility reveals an antiferromagnetic ordering at 25.7 K for M = Cd and 86.0 K for M = Mn. Further, the heat capacity measurements also support the AFM magnetic ground state in both compounds. Interestingly, the susceptibility of M = Cd exhibits a broad maximum at 45 K, which is above TN=25.7 K, indicating the formation of Ni-Ni dimers. Recently we have investigated the magnetic behaviour of a polycrystalline sample of PbCd2Ni6Te3O18 (with Cd-114) using the WISH beam line (RB2210365) at 2 K and we find an AFM ordering with propagation vector (1/3 1/3 0) with the Ni-moments along the c-axis. What is missing is the information on the temperature dependent crystal structure, i.e., Ni-Ni bond lengths/angles of PbCd2Ni6Te3O18 to study the effect of Ni-Ni dimer formation. We therefore propose to investigate temperature dependence of the crystal structure of PbCd2Ni6Te3O18 using the high-resolution neutron powder diffractometer (HRPD).
Experimenter: Dr Russell Ewings
Experimenter: Dr Dharmalingan Prabhakaran
Experimenter: Dr Uthayakumar Sivaperumal
Local Contact: Dr Dominic Fortes
Experimenter: Dr Devashi Adroja
Experimenter: Dr Hui-Qian Luo
Experimenter: Miss Lin Yang
DOI: 10.5286/ISIS.E.RB2310693
ISIS Experiment Number: RB2310693
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2310693-1 | HRPD | 20 October 2026 | 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 Russell Ewings et al; (2023): Temperature depedent crystal strcture to study Ni-Ni dimerization in a one-dimensional PbCd2Ni6Te3O18, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310693
Data is released under the CC-BY-4.0 license.
