Transport in Quantum Well Wires PDF

Keywords

quantum, radiations, de Broglie wavelength

Abstract

Quantum theoretical results on dc transport in quantum well wires (QWW) indicate the suppression of ionized impurity scattering under stronger quantum confinement conditions, with enhancement of acoustic-phonons or point-defect or alloy scattering. The quantum size resonance linewidth, when radiations are polarized perpendicular to the wire, is shown to be proportional to lambdaD^2/A(tau)b where lambdaD is the de Broglie wavelength, A is the confinement area, and tau b is the bulk relaxation time. A quantum freeze-out of confined carriers is expected to induce a semimetal-semiconductor transition in semimetallic thin wires.