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The simulation of a double-tunnel junction with the SENS simulator gives access to the frequency-dependent and static behavior of shot noise. The concept of basic paths in a multi-state process provides a clear interpretation of the noise regimes, and allows locating cut-offs in autocorrelation functions and spectral densities.
Though the energy bandgap of strained graphene remains zero, the shift of Dirac points in the k-space due to strain-induced deformation of graphene lattice can lead to the appearance of a finite conduction gap of several hundreds meV in strained/unstrained junctions with a strain of only a few percent. This conduction gap strongly depends on the direction of applied strain and the transport direction...
We propose a Klein tunneling transistor based on the geometrical optics of DFs. We consider the case of a prismatic active region generated by a triangular gate. In this region, total internal reflection may occur, which leads to the controllable suppression of transistor transmission. We study the transmission and the current in this device by means of non-equilibrium Green's function (NEGF) simulation.
The electron spin properties in semiconductors are of great interest because of their potential in future spin-driven microelectronic devices. We performed simulations on electron spin injection in an n-doped silicon bar from a magnetic semiconductor with spin-dependent conductivity. A variation of doping can introduce charge accumulation/depletion layer at the interface. We found substantial spin...
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