Unformatted text preview: Then use the continuity of the wave function and continuity of it’s derivative as it passes through a boundary to solve for the remaining coefficients. Your final answer will be a transcendental equation in energy (what you are asked to find) and may be solved numerically or graphically for a series of allowable energy values. 2.) Describe the effect of band curvature on the effective mass. 3.) Describe the effect of band slope on the particle velocity. 4.) What is the effect of confining a particle in a localized region as opposed to allowing it to travel throughout free space? Explain by drawing an E-k relationship for both cases. 5.) How is a direct bandgap material different from an indirect bandgap material. 6.) If a state is above the fermi energy, is it likely to be empty or filled? 7.) Briefly describe the various ways a quantum particle can be reflected or transmitted at a potential barrier....
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- Spring '08
- wave function, electron wave function, allowable energy values