ISIS Neutron and Muon Source Data Journal

Superconducting ammonia-rich metal/ammonia intercalates of FeSe

Abstract: The discovery of superconductivity at up to 55 K in a series of iron arsenide and selenide materials has ignited huge interest. These compounds show unique features that are leading to the development of new theories of superconductivity in close proximity to magnetism. Intercalation of ammonia into FeSe turns it from a 9 K to 43 K superconductor. We have recently identified an intermediate phase in the intercalation reaction which is richer in ammonia but has a 39 K transition. In this experiment we plan to use muons to compare how the key parameters (penetration depth, superconducting volume fraction, presence of magnetism) relating to the superconducting state are affected by the intercalation of additional ammonia.

Principal Investigator: Professor Stephen Blundell
Experimenter: Dr Francis Pratt
Experimenter: Dr Danny Woodruff
Experimenter: Dr Franz Lang
Experimenter: Dr Peter Baker
Experimenter: Professor Tom Lancaster
Experimenter: Miss Francesca Foronda
Experimenter: Dr Simon Cassidy
Experimenter: Dr Simon Clarke

DOI: 10.5286/ISIS.E.RB1510457

ISIS Experiment Number: RB1510457

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 Stephen Blundell et al; (2015): Superconducting ammonia-rich metal/ammonia intercalates of FeSe, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510457

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