Evidence for Luttinger-liquid behavior in crossed metallic single-wall nanotubes.
Transport measurements through crossed metallic single-wall nanotubes are presented. We observe a zero-bias anomaly in one tube which is suppressed by a current flowing through the other nanotube. These results are compared with a Luttinger-liquid model which takes into account electrostatic tube-tube coupling together with crossing-induced backscattering processes. Explicit solution of a simplified model is able to describe qualitatively the observed experimental data with only one adjustable parameter.
Gao
B
B
Laboratoire Pierre Aigrain, Ecole Normale Supérieure, 75231 Paris 05, France.
Komnik
A
A
Egger
R
R
Glattli
D C
DC
Bachtold
A
A