We have investigated the shot noise affected by the perturbation of two microwave fields (MWFs) with frequencies ω<Subscript>1</Subscript> and ω<Subscript>2</Subscript>, which can be classified as the commensurate and incommensurate external ac fields. The time-dependent current correlation function and the spectral density of shot noise...</subscript></subscript>

We have investigated the spectral density of shot noise for the system of a quantum dot (QD) coupled to two single-wall carbon nanotube terminals irradiated with a microwave field on the QD. The terminal features are involved in the shot noise through modifying the self-energy of QD. The...

Conductance properties in spin field-effect transistors (SFET) are studied by taking into account the Rashba spin-orbit coupling strength, the presence of external magnetic field, the angle between the direction of magnetization and the conductance band mismatch between the ferromagnetic...

The electronic structure, spin splitting energies, and g factors of paramagnetic In<Subscript>1-x</Subscript>Mn<Subscript>x</Subscript>As nanowires under magnetic and electric fields are investigated theoretically including the sp-d exchange interaction between the carriers and the magnetic ion. We find that the effective g factor changes...</subscript></subscript>