  A kagome lattice is composed of corner-sharing triangles arranged on a
honeycomb lattice such that each honeycomb bond hosts a kagome site while each
kagome triangle encloses a honeycomb site. Such close relation implies that the
two lattices share common features. We predict here that a kagome crystal,
similar to the honeycomb lattice graphene, reacts to elastic strain in a unique
way that the bulk electronic states in the vicinity of Dirac points are
reorganized by the strain-induced pseudomagnetic field into flat Landau levels,
while the degenerate edge states in the undeformed crystal become separated in
the energy dimension. When the strain is tuned continuously, the resulting
scanning pseudomagnetic field gives rise to quantum oscillations in both
density of states (DOS) and electric conductivity.
