Scattering of Plasmons at the Intersection of Two Metallic Nanotubes: Implications for Tunneling

作者：Mkhitaryan V V^*; Fang Y; Gerton J M; Mishchenko E G; Raikh M E

来源：Physical Review Letters, 2008, 101(25): 256401.

DOI：10.1103/PhysRevLett.101.256401

We study theoretically the plasmon scattering at the intersection of two metallic carbon nanotubes. We demonstrate that, for a small angle of crossing theta < 1, the transmission coefficient is an oscillatory function of lambda/theta, where lambda is the interaction parameter of the Luttinger liquid in an individual nanotube. We calculate the tunnel density of states nu(omega,x) as a function of energy omega and distance x from the intersection. In contrast with a single nanotube, we find that, in the geometry of crossed nanotubes, conventional "rapid" oscillations in nu(omega,x) due to the plasmon scattering acquire an aperiodic "slow-breathing" envelope which has lambda/theta nodes.

• 出版日期2008-12-19