Electronic Specific Heat of Metallic Ti-Doped ${\mathrm{V}}_2$${\mathrm{O}}_3$

In the system (${\left({\mathrm{V}}_{1-x}{\mathrm{Ti}}_x\right)}_2{\mathrm{O}}_3$, the antiferromagnetic insulating phase is suppressed for $x>\mathrm{}0.05\mathrm{}$. The linear term in the heat capacity is very large ($\gamma =192\mathrm{}\times {10}^{-4}$ cal °${\mathrm{K}}^{-2\mathrm{}}$ per mole of ${\mathrm{V}}_2$${\mathrm{O}}_3$), and the magnetic susceptibility at 4.2°K is 2 × ${10}^{-3\mathrm{}}$ emu ${\mathrm{mole}}^{-1\mathrm{}}$ giving a value $\frac{\chi }{\gamma }=1.8\mathrm{}$. The results are interpreted as evidence for a strongly correlated metallic phase.