  Kagome magnets are expected to feature emergent properties due to the
interplays among geometry, magnetism, electronic correlation, and band
topology. The magnetism and topological electronic states can be tuned via the
rare earth engineering in RV6Sn6 kagome metals, where R is a rare earth
element. Herein, we present the synthesis and characterization of SmV6Sn6, a
metal with two-dimensional kagome nets of vanadium and frustrated triangular Sm
lattice. Partial of the Sm atoms are shifted from the normal R positions by c/2
along the c axis. Magnetic measurements reveal obvious anisotropy, where the
easy magnetic axis is within the ab plane. Electronic transports show multiband
behaviors below 200 K. Density functional theory calculations find that the
electronic structure of SmV6Sn6 hosts flat bands, Dirac cone, and saddle point
arising from the V-3d electrons near the Fermi level. No evidence for the
existence of charge density wave or magnetic order down to 2 K can be observed.
Thus, SmV6Sn6 can be viewed as a modest disordered derivative of the RV6Sn6
structure, in which the disordered rare earth ions can suppress the magnetic
order and charge density wave in the RV6Sn6 kagome family.
