ISIS Neutron and Muon Source Data Journal

Local and intermediate-range order in AgI-containing glasses

Abstract: Usual structural hypothesis related to superionic glasses containing metal halides MY = LiI, NaBr, AgI, etc., implies the absence of chemical interactions between the host glass and metal halide. An expansion of the host network caused by large anions (I, Br) and related increase of the available free volume for fast cations, forming preferential conduction pathways, was considered to be the key parameter for glassy superionics. Our preliminary results for a (AgI)0.2(As2S3)0.8 glass show that this AgI-poor sample exhibits a mixed silver tetrahedral environment (2S+2I). Consequently, a strong evidence of chemical interaction between AgI and As2S3 host glass is observed. We are asking for 2 days on GEM or SANDALS to elucidate the short-range order and connectivity of the AgI-related subnetwork and follow the expected evolution from isolated to extended Ag-centred structures.

Principal Investigator: Professor Eugene Bychkov
Experimenter: Dr Mohammad Kassem
Experimenter: Dr Alex Hannon
Experimenter: Dr Mariana Milochova

DOI: 10.5286/ISIS.E.RB1610425

ISIS Experiment Number: RB1610425

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:
Professor Eugene Bychkov et al; (2016): Local and intermediate-range order in AgI-containing glasses, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610425

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