ISIS Neutron and Muon Source Data Journal

Neutron diffraction study of magnetic ordering in quasi-1D S=1 Haldane chain compounds

Abstract: Materials with (S=1) Ni2+ ions in quasi-one-dimensional spin-chains are of great interest because of the formation of a Haldane gap in the ground state. The compounds PbM2Ni6Te3O18 (M = Fe, Co, Zn) are new systems with hexagonal structure and quasi-1D chains formed by Ni2+. The M2+ ions provide additional spins whit S=2, S=3/2 and S=0 for M=Fe, Co and Zn respectively, tuning the exchange interactions and proving new degree of freedom. Recently our group has investigated another member of the family with M=Cd, using elastic and inelastic neutron scattering. The obtained result revealed a complex AFM ordering with propagation vector k=(1/3 1/3 0), which is different from the simple collinear k=0 magnetic structure found in M=Mn compound. To understand the role of M ions in the magnetic structure stability and the magnetic exchange interactions, we propose to investigate magnetic orders in the M=Fe, Co and Zn members, using WISH diffractometer. The obtained information will also help to analysis spin waves in these compounds, which are going to be investigated using inelastic neutron scattering.

Experimenter: Dr Dmitry Khalyavin
Experimenter: Dr Devashi Adroja
Local Contact: Dr Pascal Manuel
Experimenter: Dr Uthayakumar Sivaperumal
Experimenter: Dr Dharmalingan Prabhakaran

DOI: 10.5286/ISIS.E.RB2310507

ISIS Experiment Number: RB2310507

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 Dmitry Khalyavin et al; (2023): Neutron diffraction study of magnetic ordering in quasi-1D S=1 Haldane chain compounds, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310507

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