ISIS Neutron and Muon Source Data Journal

Chemical binding and effective temperature survey beyond the nuclear recoil resolution limit.

Abstract: Differences in heavy metal nuclear momentum distributions (NMDs) in different metallic compounds due to chemical binding and effective temperature difference will most likely never be possible to be measured via conventional technique of recoil peak separation in neutron Compton scattering (NCS). However, in recent years a new avenue has been explored in the electron volt spectroscopy at ISIS, (n,gamma) absorption resonance Dopplerimetry (NRD). Following successful pilot work on caesium and iodine resonances, this proposal aims at extending the capability of NRD towards characterisation of compounds of a heavy resonant metal nucleus in the weak binding regime, tantalum (Ta), by comparing TaF3, TaCl3, TaN5O15 at T=10K, and TaH0.15 as a function of temperature. Obtained results will be compared with ab initio predictions obtained from CASTEP code.

Principal Investigator: Dr Matthew Krzystyniak
Experimenter: Professor Giovanni Romanelli
Experimenter: Dr Kacper Druzbicki
Experimenter: Dr Marek Jura

DOI: 10.5286/ISIS.E.RB1520412

ISIS Experiment Number: RB1520412

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 Matthew Krzystyniak et al; (2016): Chemical binding and effective temperature survey beyond the nuclear recoil resolution limit., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520412

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