Cyclotron Resonance in Doped and Undoped InAs∕AlSb Heterostructures with Quantum Wells

On the Thermodynamics of a Two-Dimensional Electron Gas with Non-Parabolic Dispersion

“…Stepped changes of the DOS are manifested in the form of fracture. These fractures can be seen clearly in calculated lines ( Figure 3) and these lines explain the experimental data [7]. The number of filled subbands increases at the wide QW and high temperatures (Figure 4).…”

“…Filling of i = 1, 2, 3 subbands, depending on the total two-dimensional electron concentration for InAs QW: T = 4.2 K, L = 15 and 18 nm. Symbols-experimental data[7]. concentration continues to increase linearly until it begins filling the second miniband.When filling in the upper subband starts, a filling of the lower subband is slowing.…”

Effects of Band Nonparabolicity and Band Offset on the Electron Gas Properties in <i>InAs/AlSb</i> Quantum Well

“…In this study are provided useful approximation (8) of subband dispersions and simplified Equation (10) to calculate the statistics of a degenerate electron gas in heterostructured InAs/AlSb QW, which satisfactorily describes the experimental results [8]. They are also useful to study of calculation of the transport, optical and magnetic properties of electron gas in a Kane type 2D system.…”

“…In [8] has been investigated InAs/AlSb based QW with well width L = 15 nm, where two dimensional (2D) electron concentration ranges from 2.7 × 10 11 to 8 × 10 12 cm −2 . In this work has been found increase of the effective mass of almost 2 times.…”

Massless Dirac fermions in III-V semiconductor quantum wells

“…3b, the linear and parabolic gapless states have different behavior of cyclotron mass as a function of k F . Figures 4a and 4b show CR spectra measured at T = 4.2 K with both backward wave oscillator (BWO) at 845 GHz [39,40] and quantum cascade laser (QCL) at 3 THz [41] (pulse duration of 3 µs; repetition period of 100-200 µs) at different electron concentrations varied by using PPC effect [36]. The measurements were performed on the unprocessed sample with a changing of the electron concentration by varying the time illumination from red and blue light emitting diodes placed close to the sample.…”