Phonon-assisted tunneling in interacting suspended single wall carbon nanotubes

Abstract

Transport in suspended metallic single wall carbon nanotubes in the presence of strong electron-electron interaction is investigated. We consider a tube of finite length and discuss the effects of the coupling of the electrons to the deformation potential associated to the acoustic stretching and breathing modes. Treating the interacting electrons within the framework of the Luttinger liquid model, the low-energy spectrum of the coupled electron-phonon system is evaluated. The discreteness of the spectrum is reflected in the differential conductance which, as a function of the applied bias voltage, exhibits three distinct families of peaks. The height of the phonon-assisted peaks is very sensitive to the parameters. The phonon peaks are best observed when the system is close to the Wentzel-Bardeen singularity.

arXiv comment14 pages, 3 figures

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Cited by in corpus (16)

• Tunneling in suspended carbon nanotubes assisted by longitudinal phonons
• Electron-vibron coupling in suspended carbon nanotube quantum dots
• Asymmetric Franck-Condon factors in suspended carbon nanotube quantum dots
• Coherent properties of nano-electromechanical systems
• Euler buckling instability and enhanced current blockade in suspended single-electron transistors
• An electrical probe for mechanical vibrations in suspended carbon nanotubes
• Electron-vibron coupling in suspended nanotubes
• Self-organization of irregular NEM vibrations in multi-mode shuttle structures
• Dynamical symmetry breaking in vibration-assisted transport through nanostructures
• Non-Equilibrium and Quantum Coherent Phenomena in the Electromechanics of Suspended Nanowires
• Spectrum and Franck-Condon factors of interacting suspended single-wall carbon nanotubes
• Magnetic field control of the Franck-Condon coupling of few-electron quantum states
• Probing Wigner correlations in a suspended carbon nanotube
• Finite frequency noise in chiral Luttinger liquid coupled to phonons
• Dynamical electron transport through a nanoelectromechanical wire in a magnetic field
• Tunneling into a Luttinger-liquid coupled to acoustic phonons out of equilibrium