Shunt quantum capacitance induced source switching in an electron Y-branch switch

Intrinsic feedback and bistable switching in Y-branched nanojunctions

“…The most prominent example is the ballistic rectification effect 3 which has been observed in Y-branched nanojunctions up to room temperature 4 and has initiated intensive theoretical studies. [5][6][7] Moreover, if combined with side gates the Y-branched nanojunctions allow for gain 8,9 and even bistable switching in the presence of external voltage feedback. 10 Switching in Y-branched nanojunctions is enhanced by a self-gating effect 8,11 which is not expected in macroscopic conductors.…”

Coherent magnetotransport and time-dependent transport through split-gated quantum constrictions

“…[10][11][12][13] The conductance G is a fundamental property of quasi-one-dimensional systems with values close to integer multiples of twice the quantum unit of conductance G 0 =2e 2 / h, where e denotes the charge of an electron, the factor of 2 accounts for spin degeneracy, and h is Planck's constant. Moreover, the conductance depends sensitively on the particular arrangement of scatterers as well as the applied external fields in the mesoscopic system.…”

“…Coherent transport phenomena in mesoscale conductors with various geometries have attracted much attention over recent years due to their potential in the investigation of various resonance or boundstate features, 1,2,3,4,5 imaging coherent electron wave flow, 6,7,8,9 and electrical switching effects. 10,11,12,13 The conductance G is a fundamental property of quasi-onedimensional systems close to twice the quantum unit of conductance G 0 = 2e 2 /h, where −e denotes the charge of an electron, the factor of 2 accounts for spin degeneracy, and h is Planck's constant. Moreover, the conductance depends sensitively on the particular arrangement of scatterers as well as the applied external fields in the mesoscopic system.…”