Negative length orbits in normal-superconductor billiard systems
Megjelenés dátuma: 2000
MTMT: 1205000
WoS ID: 000089996600040
Scopus ID: 0034297635
Absztrakt:
The path-length spectra of mesoscopic systems including diffractive
scatterers and connected to a superconductor are studied theoretically.
We show that the spectra differ fundamentally from that of normal
systems due to the presence of Andreev reflection. It is shown that
negative path lengths should arise in the spectra as opposed to the
normal system. To highlight this effect we carried out both quantum
mechanical and semiclassical calculations for the simplest possible
diffractive scatterer. The most pronounced peaks in the path-length
spectra of the reflection amplitude are identified by the routes that
the electron and/or hole travels.
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Név: Negative length orbits in normal-superconductor billiard systems.pdf
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Formátum: PDF