Disordered Quasi-2D Semiconductor Structures: Percolation, Non-Coherent Mesoscopics, and Conductance Quantization
RUSSIAN RESEARCH CENTER MOSCOW KURCHATOV INST
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The electron effective state density Nss and dependence of the homegax vs the Fermi energy have been also analyzed. As we have found out the state density doesnt have any noticeable energy dependence and Nss 2mph2, while the parameter homegax rapidly drops from 100 meV down to 1 meV with the Fermi energy decreasing. The latter means that reducing of the FP screening leads to the saddle transformation into the narrow and long ballistic channel and thus detemines the conductance behavior vs the gate voltage and temperature.
- Solid State Physics