Quantum Shot Noise Suppression in Single-Walled Carbon Nanotubes
N. Y. Kim, W. D. Oliver, Y. Yamamoto, J. Kong, H. Dai
Abstract
We study the low frequency current correlations of an individual single-walled carbon nanotube at liquid He temperature. We have distinguished two physical regimes -- zero dimensional quantum dot and one dimensional quantum wire -- in terms of an energy spacing from the finite tube length in both differential conductance and shot noise measurements. In a one dimensional wire regime, we observed a highly suppressed shot noise from all measured tube devices, suggesting that electron-electron interactions play an important role.
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