ISIS Neutron and Muon Source Data Journal

Possible unconventional magnetism in nematic CsTi3Bi5 kagome supercondutor

Abstract: We propose a zero-field muon spin relaxation investigation of the nematic CsTi3Bi5 kagome superconductor. Nematicity is a ubiquitous feature to many superconductors, such as the cuprates, and it is thought to be a possible drive for the Cooper pairs formation. This kagomè family is also believed to host unconventional magnetism related to a time reversal symmetry breaking (TRSB) phenomenon. This was recently attributed to the presence of loop currents, arising from the formation of a charge density wave state. However, our preliminary spin-resolved photoelectron spectroscopy data from circular dichroism suggest a strong time-reversal symmetry breaking even for CsTi3Bi5, which does not undergo any charge density wave. Here we search for the decisive fingerprint of TRSB in CsTi3Bi5 by exploiting the great sensitivity of muons to low local fields.

Principal Investigator: Professor Samuele Sanna
Experimenter: Dr federico mazzola
Experimenter: Professor Stephen Wilson
Experimenter: Dr Pietro Bonfa
Local Contact: Dr Peter Baker
Experimenter: Mr Diego Valenti
Experimenter: Dr Ifeanyi John Onuorah
Experimenter: Mr noé desportes de la fosse
Experimenter: Dr Giovanni Zotti

DOI: 10.5286/ISIS.E.RB2410500

ISIS Experiment Number: RB2410500

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 Samuele Sanna et al; (2024): Possible unconventional magnetism in nematic CsTi3Bi5 kagome supercondutor, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2410500

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