Amplification of acoustic phonons propagating along the axis of a semiconductor superlattice (SL) is investigated using the microscopic theory. A non-quantizing electric field is applied to the S to produce a drift velocity ...

Amplification of acoustic waves in Armchair Graphene Nanoribbon (AGNR) in the presence of an external electric and magnetic fields was studied using the Boltzmann's kinetic equation. The general expression for the amplification ...

Using the semiclassical approach we studied the thermoelectrical properties of a single-walled chiral carbon nanotubes (SWNTs). We predict a giant electrical power factor and hence proposed the use of carbon nanotubes as ...

The dc acoustoelectric current J" induced by the interaction of acoustic phonons with the conducting electrons is calculated. The calculation is done in the hypersound regime where q > I (here q is the acoustic phonon ...

The acoustoelectric effect in a semiconductor superlattice (SL) has been studied for a hypersound in the region ql 1 (where q is the acoustic wave number and l is the electron mean free path). A nonlinear dependence of ...

Excitation of soliton in superlattice has been investigated theoretically. It is noted that the soliton velocity u and the length L depend on the amplitude Eo and that an increase in the amplitude causes soliton width L ...