ISIS Neutron and Muon Source Data Journal

Inelastic Neutron Scattering Study of Phonon Spectra of Thermoelectric Material FeNb1-xTxSb (T = Zr, Ta and Hf)

Abstract: FeNbSb-related compounds are a group of promising thermoelectric materials. Suppressing the lattice thermal conductivity through different phonon scattering mechanisms could enhance the thermoelectric performance. Previous studies based on the physical transport measurements, it is found that electron-phonon coupling and point defects may play important roles in the suppression of thermal conductivity in FeNb1-xTxSb (T = Zr, Ta and Hf) compounds. In this proposal, we would like to using the inelastic neutron scattering technique to measure the phonon density of states (DOS) in these samples. The comparison of phonon DOSs between these sample, combined with the DFT calculation, could shed light on the phonon scattering mechanisms in these samples.

Principal Investigator: Dr Qingyong Ren
Experimenter: Dr Jiangtao Wu
Local Contact: Dr Duc Le
Experimenter: Mr JIANGTAO WU
Experimenter: Dr Jie Ma
Experimenter: Dr Guohua Wang
Experimenter: Dr G. T. Lin

DOI: 10.5286/ISIS.E.RB1820186

ISIS Experiment Number: RB1820186

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 Qingyong Ren et al; (2019): Inelastic Neutron Scattering Study of Phonon Spectra of Thermoelectric Material FeNb1-xTxSb (T = Zr, Ta and Hf), STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820186

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