Transmission and reflection peaks in ballistic transport

An analytical treatment of quantum ballistic transport, for electrons in nanostructures, shows that Lorentzian energy-dependence peaks of transmission probability and of reflection probability are equally inherent. For both cases the resonance is associated with a local quasilevel state, having a de...

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Veröffentlicht in:	Applied physics letters 1993-01, Vol.62 (3), p.289-290
1. Verfasser:	PRICE, P. J
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic transport in condensed matter Exact sciences and technology Physics Theory of electronic transport scattering mechanisms
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	An analytical treatment of quantum ballistic transport, for electrons in nanostructures, shows that Lorentzian energy-dependence peaks of transmission probability and of reflection probability are equally inherent. For both cases the resonance is associated with a local quasilevel state, having a decay time that is related to the Lorentzian energy half-width by the Breit-Wigner formula. For a reflection resonance, the peak value of reflection probability is shown to be 1 regardless of the symmetry of the system, in contrast to the transmission resonance case.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.108993