Magnetic phase transition in lightly doped LiGa1-xInxCr4O8

DOI

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.

Identifier
DOI https://doi.org/10.5286/ISIS.E.63818077
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/63818077
Provenance
Creator Mr Rafal Wawrzynczak; Dr Gøran Nilsen; Professor Zenji Hiroi; Dr Hannu Mutka; Mr Yu Tanaka; Dr Pascal Manuel; Dr Yoshihiko Okamoto; Dr Takeshi Yajima
Publisher ISIS Neutron and Muon Source
Publication Year 2018
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Natural Sciences; Physics
Temporal Coverage Begin 2015-10-11T07:00:00Z
Temporal Coverage End 2015-10-12T07:00:00Z