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THE EFFECTIVE MASS THEORY

THE EFFECTIVE . MASS THEORY . Gokhan Ozgur Electrical Engineering SMU - 2003. Introduction In this presentation, the EFFECTIVE mass THEORY (EMT) for the electron in the crystal lattice will be introduced. The dynamics of the electron in free space and in the lattice will be compared. The E-k diagram for direct band gap semiconductors will be studied and the hole concept will be introduced. Next, the EMT. for single and degenerate bands will be presented. Finally, some application areas of the EMT will be mentioned. What is the EFFECTIVE Mass An electron in crystal may behave as if it had a mass different from the free electron mass m0.

In this presentation, the effective mass theory (EMT) for the electron in the crystal lattice will be introduced. The dynamics of the electron in free space and in the lattice will be compared. The E-k diagram for direct band gap semiconductors will be ... electric or magnetic field as if its mass is equal to an effective

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