Browsing by Author "Guliyev, Bahsheli"

Now showing 1 - 2 of 2

Fermi Energy and Electron Thermopower in Quantum Films of an Asymmetric Profile
(Elsevier Science Bv, 2019) Guliyev, Bahsheli; Kerimli, Genber; Bashirov, Novruz
The behavior of the Fermi energy and the electron thermoelectric power in an asymmetric quantum well of the Morse potential type as a function of electron concentration are studied. It is shown that the Fermi energy is a piecewise-linear function, and the electron thermoelectric power is an oscillating function. The analysis shows that the nature of these oscillations differs significantly from that in films of a parabolic and rectangular profile, namely, the oscillation period is a nonmonotonic function and reaches a maximum at some value of the electron concentration. The possibility of estimating the parameters of the film profile (quantum well) is proposed. A comparison with the experiment shows a qualitative agreement.
The Thermopower in Semiconducting Thin Films With Nonparabolic Energy Band
(World Scientific Publ Co Pte Ltd, 2012) Guliyev, Bahsheli; Kerimli, Genber
In the present work, the in-plane electron thermopower of semiconducting size-quantized films with nonparabolic energy band in a classically strong magnetic field, which is parallel to the film normal, are investigated. It was shown that, for the degenerate electron gas thermopower is a function of film thickness and electron density: for arbitrary thickness thermopower is oscillating function, with the period as a function of concentration, but with respect to concentration thermopower is monotonically increasing function. It is shown that in the case of ultrathin films (quantum wells) thermopower increases, as thickness decreases. This result is in agreement with the experimental dates on GaAs quantum wells.