The effect of pulse-modulated surface acoustic waves on acoustoelectric current quantization

Journal of Applied Physics

Volumn 100, Issue 6, 2006, Pages

  Kataoka, M ^a   Ford, C J B ^a   Barnes, C H W ^a   Anderson, D ^a   Jones, G A C ^a   Beere, H E ^a   Ritchie, D A ^a   Pepper, M ^a  

^a UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

CALIBRATION; CHANNEL CAPACITY; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; PROBLEM SOLVING; PULSE MODULATION; TRANSDUCERS;

ACOUSTOELECTRIC CURRENT QUANTIZATION; SHORT PULSE LENGTH; SURFACE ACOUSTIC WAVES (SAW); UNCONTROLLABLE POTENTIAL FLUCTUATIONS;

ACOUSTIC WAVE EFFECTS;

EID: 33749394714     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2349487     Document Type: Article

References (13)

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10. The observation of zero current away from the transducer resonant frequency in Fig. 2 shows that the pickup itself does not drive a current in this regime.
11. R. J. Schneble et al., Appl. Phys. Lett. (in press).
12. Ideally, the calibration data should be taken without pulse modulation. However, this is difficult due to the cross-talk problem. The effect of the transducer passband on the 10 μs wide pulse is negligible as shown in the inset to the upper panel of Fig. 5. As cross-talk is also smaller at this pulse condition, we adopted these data for calibration.
13. Another possible origin of a reduction in the ef plateau value is a counterflow current driven by reflected SAWs. However, since it is expected to add a negative slope to the ef plateau, which is not what is observed, the current driven by reflected SAWs should be negligible and does not affect our analysis.