With intricate lattice structures, kagome materials are an excellent platform
to study various fascinating topological quantum states. In particular, kagome
materials, revealing large responses to external stimuli such as pressure or
magnetic field, are subject to special investigation. Here, we study the
kagome-net HoMn6​Sn6​ magnet that undergoes paramagnetic to ferrimagnetic
transition (below 376 K) and reveals spin-reorientation transition below 200 K.
In this compound, we observe the topological Hall effect and substantial
contribution of anomalous Hall effect above 100 K. We unveil the pressure
effects on magnetic ordering at a low magnetic field from the pressure tunable
magnetization measurement. By utilizing high-resolution angle-resolved
photoemission spectroscopy, Dirac-like dispersion at the high-symmetry point K
is revealed in the vicinity of the Fermi level, which is well supported by the
first-principles calculations, suggesting a possible Chern-gapped Dirac cone in
this compound. Our investigation will pave the way to understand the
magneto-transport and electronic properties of various rare-earth-based kagome
magnets