Acoustoelectric Effect in degenerate Carbon Nanotube

Abstract

Acoustoelectric Effect $AE$ in degenerate Carbon Nanotube ($CNT$) was theoretically studied for hypersound in the regime $ql>>1$. The dependence of acoustoelectric current $j^{ac}$ on the acoustic wave number $\vec{q}$ and frequency ${\omega }_q$ at $T=10K$ and scattering angle ($\theta >0$) was evaluated at various harmonics $n=\pm 1,2,...$ (where $n$ is an integer). In the first harmonics ($n=\pm 1$), the non-linear dependence of $j^{ac}$ on ${\omega }_q$ and $\vec{q}$ were obtained. For $n=\pm 2$, the numerically evaluated $j^{ac}$ qualitatively agreed with an experimentally obtained result.

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References in corpus (2)

• Electrical generation and absorption of phonons in carbon nanotubes
• Hypersound Absorption of Acoustic Phonons in a degenerate Carbon Nanotube

Cited by in corpus (3)

• Amplification of Acoustic Waves in Graphene Nanoribbon in the Presence of External Electric and Magnetic Field
• Acoustoelectric Effect in Graphene with degenerate Energy dispersion
• On the amplification of acoustic phonons in carbon nanotube