Nature Physics, Published online: 23 March 2026; doi:10.1038/s41567-026-03207-5
The electronic structure of a kagome metal has been investigated using magnetoARPES — the newly developed capability to perform angle-resolved photoemission spectroscopy in the presence of a tunable magnetic field. The momentum-resolved spectral response to a magnetic field was seen to develop in the charge density wave order, revealing electronic evidence of time-reversal symmetry breaking.
