Contact resistance of quantum tubes

TY - JOUR

T1 - Contact resistance of quantum tubes

AU - Mortensen, Niels Asger

AU - Johnsen, Kristinn

AU - Jauho, Antti Pekka

AU - Flensberg, Karsten

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We consider the conductance of a quantum tube connected to a metallic contact. The number of angular momentum states that the tube can support depends on the strength of the radial confinement. We calculate the transmission coefficients which yield the conductance via the Landauer formula, and discuss the relation of our results to armchair carbon nanotubes embedded in a metal. For Al and Au contacts and tubes with a realistic radial confinement we find that the transmission can be close to unity corresponding to a contact resistance close to h/2e2 per band at the Fermi level in the carbon nanotube.

AB - We consider the conductance of a quantum tube connected to a metallic contact. The number of angular momentum states that the tube can support depends on the strength of the radial confinement. We calculate the transmission coefficients which yield the conductance via the Landauer formula, and discuss the relation of our results to armchair carbon nanotubes embedded in a metal. For Al and Au contacts and tubes with a realistic radial confinement we find that the transmission can be close to unity corresponding to a contact resistance close to h/2e2 per band at the Fermi level in the carbon nanotube.

UR - http://www.scopus.com/inward/record.url?scp=0033330314&partnerID=8YFLogxK

U2 - 10.1006/spmi.1999.0812

DO - 10.1006/spmi.1999.0812

M3 - Journal article

AN - SCOPUS:0033330314

SN - 0749-6036

VL - 26

SP - 351

EP - 361

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 6

ER -