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.
Phonon density of states in high-conductivity delafossites
Abstract: The delafossite compounds PdCoO2 and PtCoO2 show extremely high electrical conductivity at low temperatures. In this system Pt,Pd layers with triangular arrangement are separated by edge-sharing CoO6 octahedra. Raman and infrared spectroscopy revealed high-energy optical phonons well beyond 100 meV and were attributed to oxygen vibrations. It is suspected that these high-frequency phonons are involved in the high conductivity seen at low temperature. So far, no detailed measurements of the phonons have been performed. The present proposal aims at studying the phonon density of states in PdCoO2 to shed light on the unusual low temperature properties. Therefore we ask for 4 days of beamtime on MARI. Theoretical calculations are currently in progress to complement the proposed experiment.
Principal Investigator: Dr Oliver Stockert
Experimenter: Miss Veronika Sunko
Experimenter: Dr Pallavi Kushwaha
Local Contact: Dr Tatiana Guidi
Experimenter: Mr Stefan Lucas
DOI: 10.5286/ISIS.E.RB1620159
ISIS Experiment Number: RB1620159
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.83552808 | MARI | 21 November 2019 | 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 Oliver Stockert et al; (2016): Phonon density of states in high-conductivity delafossites, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620159
Data is released under the CC-BY-4.0 license.
