Second-Order Susceptibility from a Tight-Binding Hamiltonian
نویسنده
چکیده
Using a new formalism that modiies a tight-binding Hamiltonian to include interaction with a time-dependent electromagnetic eld, we have obtained an analytical expression for the second-order susceptibility. This expression has been used to calculate the energy dependence of (2) (!) for GaAs. The results are in agreement with previous calculations and with available experimental data.
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تاریخ انتشار 2007