${}^6$He-triton cluster states in ${}^9$Li

Cluster states in ${}^9$Li are investigated with calculations of a ${}^6$He-$t$ cluster model. Results suggest ${}^6$He-$t$ cluster states near the ${}^6$He-$t$ threshold energy. These states construct a $K^{\pi }=1\mathrm{/}{2}^{-}$ band and their neutron configuration is similar to that of the $K^{\pi }=0_2^{+}$ band in ${}^{10}$Be.