Periodic Deviations in the Schottky Effect for Molybdenum

Periodic deviations in the Schottky effect for molybdenum have been measured over a field range of ${10}^4$ to ${10}^5$ volts ${\mathrm{cm}}^{-1\mathrm{}}$ in a temperature range of 1400 to 1800°K. The results, interpreted in terms of the two reflection parameters $\lambda$ and $\mu$, justify the assumption of a mirror image barrier for the emitted electrons.