Magnetic-field dependence of low-temperature mobility in quasi-one-dimensional electron systems
Constantinou, N. C.
Journal of Physics Condensed Matter
Institute of Physics Publishing Ltd.
5113 - 5127
Item Usage Stats
MetadataShow full item record
We study the mobility of a quasi-one-dimensional (Q1D) electron system in the presence of an axial magnetic field at low temperatures. We consider the mobility limits for remote-impurity scattering, homogeneous-background scattering, interface-roughness scattering, and alloy-disorder scattering mechanisms. For a system in which all carriers are in the lowest subband, the electron-impurity interaction is modelled for the above cases, and analytic expressions are derived. Calculations appropriate for a GaAs Q1D structure are presented for typical wire radius R, electron density N, impurity density Ni, and applied magnetic field B.
KeywordsAlloy disorder scattering
Axial magnetic field
Electron impurity interaction
Homogeneous background scattering
Interface roughness scattering
Remote impurity scattering
Electron energy levels
Low temperature effects
Magnetic field effects
Semiconducting gallium arsenide
Electron transport properties
Published Version (Please cite this version)http://dx.doi.org/10.1088/0953-8984/6/27/020
Showing items related by title, author, creator and subject.
Mobility limiting scattering mechanisms in nitride-based two-dimensional heterostructures with the InGaN channel Gökden, S.; Tülek, R.; Teke, A.; Leach, J. H.; Fan, Q.; Xie, J.; Özgür, Ü.; Morkoç, H.; Lisesivdin, S. B.; Özbay, Ekmel (IOP Publishing, 2010-03-16)The scattering mechanisms limiting the carrier mobility in AlInN/AlN/InGaN/GaN two-dimensional electron gas (2DEG) heterostructures were investigated and compared with devices without InGaN channel. Although it is expected ...
Scattering analysis of two-dimensional electrons in AlGaN/GaN with bulk related parameters extracted by simple parallel conduction extraction method Lisesivdin, S. B.; Yildiz, A.; Balkan, N.; Kasap, M.; Ozcelik, S.; Özbay, Ekmel (American Institute of Physics, 2010-07-15)We carried out the temperature (22-350 K) and magnetic field (0.05 and 1.4 T) dependent Hall mobility and carrier density measurements on Al 0.22Ga0.78N/GaN heterostructures with AlN interlayer grown by metal-organic ...
Dynamical screening effects in hot-electron scattering from electron-hole plasma and LO-phonon modes in quantum wires Bennett, C. R.; Tanatar, Bilal; Constantinou, N. C. (Elsevier, 1996)We present a fully dynamical and finite temperature study of the hot-electron momentum relaxation rate and the power loss in a coupled system of electron-hole plasma and bulk LO-phonons in a quantum wire structure. ...