Piazza, Vincenzo and Beltram, Fabio and Wegscheider, Werner and Liang, Chi-Te and Pepper, M.
Large transconductance oscillations in a single-well vertical Aharonov-Bohm interferometer.
Physical Review B 62 (16), R10630-R10632.
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Aharonov-Bohm (AB) interference is reported for the first time in the conductance of a vertical nanostructure based on a single GaAs/AlxGa1-xAs quantum well (QW). The two lowest subbands of the well are spatially separated by the Hartree barrier originating from electronic repulsion in the modulation-doped QW and provide AB two-path geometry. Split-gates control the in-plane electronic momentum ...
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