Title :
Saw-induced current through CNT in coulomb blockade regime
Author :
Kim, B. ; Kim, J.J. ; Seo, M. ; Chung, Y. ; Kim, S. ; Woo, B.C. ; Kim, J. ; Kim, N.
Author_Institution :
Div. of Convergence Technol., Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea
Abstract :
Acousto-electric current through a carbon nanotube (CNT) induced by a surface acoustic wave (SAW) was studied. SAW were generated by an inter-digital transducer (IDT) on a quartz substrate and delivered to a CNT to pump electrons along the direction of the SAW propagation. A distinct current plateau was observed as a function of gate voltages and SAW powers. The observed quantized current value was higher than the expected value I=ef by 20 %. A strong interaction between electrons in a 1D wire could be one of the reasons for the discrepancy.
Keywords :
carbon nanotubes; interdigital transducers; quartz; surface acoustic wave devices; surface acoustic waves; CNT; SAW propagation; SAW-induced current; acoustoelectric current; carbon nanotube; coulomb blockade regime; interdigital transducer; pump electrons; quartz substrate; surface acoustic wave; Acoustic propagation; Acoustic transducers; Acoustic waves; Carbon nanotubes; Electrons; Surface acoustic waves; Voltage; Wire;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5543451
