We realize a nanoscale-area Mach-Zehnder interferometer with co-propagating quantum Hall spin-resolved edge states and demonstrate the persistence of gate-controlled quantum interference oscillations, as a function of an applied magnetic field, at relatively large temperatures. Arrays of top-gate magnetic nanofingers are used to induce a resonant charge transfer between the pair of spin-resolved edge states. To account for the pattern of oscillations measured as a function of magnetic field and gate voltage, we have developed a simple theoretical model which satisfactorily reproduces the data.
Nanoscale Mach-Zehnder interferometer with spin-resolved quantum Hall edge states
Karmakar, Biswajit;Venturelli, Davide;Chirolli, Luca;Giovannetti, Vittorio;Fazio, Rosario;Roddaro, Stefano;Taddei, Fabio;Pellegrini, Vittorio
2015
Abstract
We realize a nanoscale-area Mach-Zehnder interferometer with co-propagating quantum Hall spin-resolved edge states and demonstrate the persistence of gate-controlled quantum interference oscillations, as a function of an applied magnetic field, at relatively large temperatures. Arrays of top-gate magnetic nanofingers are used to induce a resonant charge transfer between the pair of spin-resolved edge states. To account for the pattern of oscillations measured as a function of magnetic field and gate voltage, we have developed a simple theoretical model which satisfactorily reproduces the data.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
1509.04437v2.pdf
accesso aperto
Tipologia:
Accepted version (post-print)
Licenza:
Non specificata
Dimensione
970.52 kB
Formato
Adobe PDF
|
970.52 kB | Adobe PDF | |
|
PhysRevB.92.195303.pdf
Accesso chiuso
Tipologia:
Published version
Licenza:
Tutti i diritti riservati
Dimensione
700.45 kB
Formato
Adobe PDF
|
700.45 kB | Adobe PDF | Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
