ISIS Neutron and Muon Source Data Journal

Study of the Hybridization Gap in the Topological Insulator YbB6

Abstract: Topological insulators (TIs) are a new quantum state of matter which have bulk insulation but topologically protected metallic surface states. Initially, the TI state was thought to only exist in band insulators but it was found that Kondo insulators, which are correlated electron systems, could also be TIs. One promising topological Kondo insulator (TKI) candidate is the rare earth compound YbB6. The most compelling evidence is angle-resolved photoemission spectroscopy data which indicate YbB6 has topologically non-trivial surface states. SmB6, the most well-known TKI candidate, has recently been studied using time-of-flight (TOF) neutron scattering and the data showed a band structure which satisfy the TI conditions. We propose to investigate the hybridization gap of YbB6 using the inelastic neutron TOF technique with the purpose of discovering any new features related to its TI nature

Principal Investigator: Professor Geetha Balakrishnan
Experimenter: Dr Devashi Adroja
Experimenter: Mr Talha Ahmad
Experimenter: Dr Monica Ciomaga Hatnean

DOI: 10.5286/ISIS.E.RB1620167

ISIS Experiment Number: RB1620167

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Geetha Balakrishnan et al; (2016): Study of the Hybridization Gap in the Topological Insulator YbB6, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620167

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