Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
BALLISTIC ELECTRON TRANSMISSION IN COUPLED PARALLEL WAVE-GUIDES
Autore:
TAKAGAKI Y; PLOOG K;
Indirizzi:
PAUL DRUDE INST FESTKORPERELEKTR,HAUSVOGTEIPL 5-7 D-10117 BERLIN GERMANY
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 3, volume: 49, anno: 1994,
pagine: 1782 - 1788
SICI:
0163-1829(1994)49:3<1782:BETICP>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTUM TRANSPORT; GAAS-ALGAAS; WAVE-GUIDE; WIRES; CONDUCTANCE; SCATTERING; RESISTANCE; MICROJUNCTIONS; TRANSISTOR; BOUNDARY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
Y. Takagaki e K. Ploog, "BALLISTIC ELECTRON TRANSMISSION IN COUPLED PARALLEL WAVE-GUIDES", Physical review. B, Condensed matter, 49(3), 1994, pp. 1782-1788

Abstract

Four-terminal resistances in parallel electron-waveguide structures coupled by a window region are calculated using classical- and quantum-mechanical methods. An electron incident through one of the waveguidescan travel into the other in the quantum ballistic regime. The transmission coefficients into the ends of the second waveguide oscillate asone of the sample parameters, such as the separation between the waveguides or the Fermi energy, is varied, leading to quasiregular modulations in the transfer resistance. Several different mechanisms ale responsible for the oscillations including (i) classical specular reflections from the side wall of the window region, (ii) depopulation of quasi-one-dimensional subbands in the waveguides, and (iii) Fabry-Perot-type quantum interference in the window region. We propose that these scenarios of the oscillations can be distinguished experimentally by their peculiar dependence on the system parameters.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 11:43:34