Superconductivity in Dilute Alloys of TaS2with Fe

Single crystals of iron-doped Ta${\mathrm{S}}_2$ grown from sintered powders of composition ${\mathrm{Fe}}_{0.05}$-Ta${\mathrm{S}}_2$ show a rise in critical temperature to above 3 K and an enhanced anisotropy of $H_{c2\mathrm{}}$ which is comparable to that observed in $2H$-Ta${\mathrm{S}}_2$ ${\mathrm{}\left(\mathrm{pyridine}\right)\mathrm{}}_{\mathrm{½}}$. Single crystals grown from ${\mathrm{Fe}}_{0.05}$ ${\mathrm{T}}_{0.95}$ ${\mathrm{S}}_2$ powders are stabilized in the $1T$ phase and are semiconducting at all temperatures below room temperature with no resistive anomaly at 200 K.