Temperature dependence of the dielectric constant of InP

Low-frequency capacitance measurements were used to determine the dielectric constant of InP from 100 to 300 K. A value of 12.56±0.2 was obtained at 300 K and an extrapolated value of 11.93±0.2 was obtained at 77 K. Below about 220 K the temperature dependence can be expressed by the relationship ε0=11.76(1+2.26×10−4 T).