ISIS Neutron and Muon Source Data Journal

Spin waves in lightly doped LiGa1-xInxCr4O8

Abstract: Magnetic frustration - the inability to mutually satisfy all magnetic interactions in a system - is the source of many interesting phenomena, including spin liquids and ices. In the spinel oxide materials LiGa1-xInxCr4O8, frustration arises from the corner sharing lattice of size-alternating Cr3+ tetrahedra. This proposal focuses on the composition LiGa0.95In0.05Cr4O8 (x = 0.05), which has been suggested to lie on the other side of a tricritical point from its parent composition (x = 0). Whereas x = 0 reveals considerable magneto-structural complexity at low T, x = 0.05 shows only a single second order magnetic transition. The magnetic structure, however, remains unknown. We aim to determine this structure by neutron diffraction on Wish, and the excitation spectrum by neutron spectroscopy on MARI. We also hope that in doing so, we may shed light on the more complex parent composition.

Principal Investigator: Dr Gøran Nilsen
Experimenter: Mr Rafal Wawrzynczak
Experimenter: Professor Zenji Hiroi
Experimenter: Dr Hannu Mutka
Experimenter: Dr Yoshihiko Okamoto
Experimenter: Mr Yu Tanaka
Local Contact: Dr Tatiana Guidi
Experimenter: Dr Takeshi Yajima

DOI: 10.5286/ISIS.E.RB1520286

ISIS Experiment Number: RB1520286

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 Gøran Nilsen et al; (2015): Spin waves in lightly doped LiGa1-xInxCr4O8, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520286

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