Nanoscale Mach-Zehnder interferometer with spin-resolved quantum Hall edge states
Nanoscale Mach-Zehnder interferometer with spin-resolved quantum Hall edge states
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 …