Question

A beam of a electron I'm pinches on every step barrier of hight 0.035ev. Calculate the refraction of electron reflected and transmitted at the barrier which the energy of the electron (I) 0.045ev (ii) 0.02ev

Answer 1

With the gap of $E_g=0.035$ eV, according to Indolia (2017), the refractive index can be calculated as

$$n=-\text{ln}[0.027E_g]=-\text{ln}[0.027\cdot0.035]=6.96.$$

Source of the equation: https://www.ripublication.com/ijpap17/ijpapv13n2_05.pdf