Specific heats of EuTe and EuSe near their magnetic transitions

Specific-heat measurements near the magnetic phase transitions of single-crystal EuTe and EuSe are reported. EuTe data were analyzed following the method of Kornblit, Ahlers, and Buehler which assumes $C=\left(\frac{A}{\alpha }\right){\mathrm{}\left|t\right|\mathrm{}}^{-\alpha }+Et+B$ with and without the constraints $E^{\prime }=E$. $B^{\prime }=B$, and ${\alpha }^{\prime }=\alpha$. The data were analyzed over four reduced temperature ranges, and the parameters for the range $0.005<\mathrm{}\left|t\right|<0.06\mathrm{}$ were chosen as representing data as close to the peak as possible without the inclusion of rounding error. We have obtained ${\alpha }^{\prime }=\alpha =0.08\mathrm{}\pm 0.06$, $\frac{A}{A^{\prime }}=0.75\mathrm{}\pm 0.15$, and $T_N=9.81\mathrm{}\pm 0.01$ K.