ac transport of one-dimensional hot electrons in GaAs andAs quantum-well wires at low temperatures
- 15 November 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (20) , 13254-13259
- https://doi.org/10.1103/physrevb.46.13254
Abstract
Small-signal ac mobility of hot electrons moving one dimensionally in GaAs and (In,Ga)As quantum-well wires (QWW’s) is studied at lattice temperatures 4.2 and 8 K in the framework of a heated drifted Fermi-Dirac distribution function. The regime where carrier energy loss occurs via deformation potential and piezoelectric couplings to nonequipartitioned acoustic phonons and momentum loss predominantly via background impurity scattering for GaAs QWW’s and alloy scattering for (In,Ga)As QWW’s is considered. Results are calculated for different carrier concentrations and side lengths of the square cross sections of the wires. Cutoff frequencies around 50 and 250 GHz are obtained for GaAs and (In,Ga)As QWW’s, respectively.Keywords
This publication has 16 references indexed in Scilit:
- Theory of polar-optical-phonon scattering in a semiconductor quantum wireJournal of Applied Physics, 1991
- Quantum transport in ultrasmall electronic devicesReports on Progress in Physics, 1990
- One-dimensional warm electron transport in GaAs quantum-well wiresSolid State Communications, 1990
- Intersubband population inversion in quantum wire structuresApplied Physics Letters, 1989
- Observation of polarization dependence of absorption in a quantum well wire array grown directly by molecular-beam epitaxyJournal of Vacuum Science & Technology B, 1989
- Energy- and momentum-loss rates of one-dimensional hot electrons in semiconductor quantum-well wiresJournal of Applied Physics, 1989
- Energy relaxation of two-dimensional electrons and the deformation potential constant in selectively doped AlGaAs/GaAs heterojunctionsApplied Physics Letters, 1986
- Energy-Loss Rates for Hot Electrons and Holes in GaAs Quantum WellsPhysical Review Letters, 1985
- Size effects on polar optical phonon scattering of 1-D and 2-D electron gas in synthetic semiconductorsJournal of Applied Physics, 1984
- Low-field electron transport in quasi-one-dimensional semiconducting structuresJournal of Physics C: Solid State Physics, 1984