1) Estimate the tunneling probability of a particle with an effective mass of 0.067 m, (an electron in gallium arsenide), where mo is the mass of an electron, tunneling through a rectangular potential barrier of height 0.8 eV and width 15 Å. The particle has a kinetic energy of 0.20 eV. Repeat the question assuming the effective mass of the particle is 1.08 m. (an electron in silicon).

Fig: 1