Electronic Resource
Springer
Journal of low temperature physics
118 (2000), S. 571-577
ISSN:
1573-7357
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Quantized single-electron transport driven by surface acousticwaves (SAW) through a pinched-off narrow constriction isstudied theoretically. Long-range Coulomb interaction causesthe tunneling coupling between the two-dimensional electrongas (2DEG) and the moving minimum of the SAW-induced potentialto decay rapidly with time. The energy scale ℏ/τ,associated with the characteristic time of this decay τ,controls both the width of the transition regions between theplateaus and the slope of the plateaus. This sets a limit forthe accuracy of the quantization of acoustoelectric current atlow temperature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1004679009078
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