Articles you may be interested inReduction of space charge breakdown in e-beam irradiated nano/polymethyl methacrylate composites Appl. Phys. Lett. 102, 012901 (2013); 10.1063/1.4773916 Effect of e-beam irradiation on graphene layer grown by chemical vapor deposition J. Appl. Phys. 111, 084307 (2012); 10.1063/1.4704197 High accuracy electron beam model development in MICHELLE: eBEAM J. Vac. Sci. Technol. B 28, C6J8 (2010); 10.1116/1.3503899 Direct simulation Monte Carlo modeling of e-beam metal deposition J. Vac. Sci. Technol. A 28, 916 (2010); 10.1116/1.3386592 Simple model for the slope change of CV curves of irradiated MOS capacitorsThe dynamic properties of a metal-ox ide-semiconductor (MOS) capacitor during e-beam irradiation was simulated using numerical techniques. Poisson's equation and the trap dynamics were used to calculate the time-dependent behavior of electrons, holes, and traps in the oxide during and after irradiation for various typical conditions. These results were used to calculate flatband shift versus gate bias voltage for steady-state as well as non-steady-state conditions. These exact computations confirm a previously published approximate two-layer model for irradiated MOS capacitors. PACS numbers: 61.80.Fe, 73.40.Qv, 85.30.Tv FIG. I. Electron-beam irradiation of an MOS device.3994

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The Hamiltonian for an accelerated electron in a periodic one-dimensional lattice is written using normalized coordinates. By this means, the exact functional form for the position and energy dependence of the energy eigenstates is obtained without resorting to the usual approximation methods, such as power-series expansions, perturbation procedures or one-band models. Bloch-type wave functions that fully satisfy Schrödinger's time-dependent equation are obtained by superimposing energy eigenstates using the Stark ladder spacing concept. Such phenomena as Bloch oscillations and Stark ladder effects are then re-examined as a consequence of this new perspective.

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The instantaneous position and shape of a localized Bloch electron wave packet is considered. Examples are given using Kronig-Penney wave packets near the bottom and near the top of the lowest two allowed bands. The hole-like behavior of a wave packet near the top of a band is shown to be an effect related to the propagation of backward waves.