Negative differential conductivity in quantum well with complex potential profile for electron–phonon scattering

• Negative differential conductivity.
• Quantum well.
• Complicated potential profile.

The effect of phonon scattering on electrical conductivity (EC) of 2D electron gas in quantum well (QW) systems with a complicated potential profile is described. Dependence of QW electrical conductivity on QW parameters (such as QW width, Fermi level positions etc.) when phonon scattering is employed has been calculated. NDC in EC when it varies with width of the QW has been found.