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Titel
Monte Carlo studies of the intrinsic time-domain response of nanoscale three-branch junctions
Autor(es)
Schlagwort
Nanodevices
Monte Carlo method
Terahertz
Ballistic transport
Clasificación UNESCO
22 Física
Fecha de publicación
2012
Citación
Íñiguez de la Torre, I. et al. (2012). Monte Carlo studies of the intrinsic time-domain response of nanoscale three-branch junctions. Journal of Applied Physics 111, 084511.
Resumen
[EN] We present a Monte Carlo time-domain study of nanostructured ballistic three-branch junctions (TBJs) excited by both step-function and Gaussian picosecond transients. Our TBJs were based on InGaAs 2-dimensional electron gas heterostructures and their geometry followed exactly the earlier experimental studies. Time-resolved, picosecond transients of both the central branch potential and the between-the-arms current demonstrate that the bandwidth of the intrinsic TBJ response reaches the THz frequency range, being mainly limited by the large-signal, intervalley scattering, when the carrier transport regime changes from ballistic to diffusive.
URI
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