Pressure control of conducting channels in singlewall nanotube networks

Abstract

We measure electrical transport on networks of single wall nanotube ropes as a function of temperature T, voltage V and pressure up to 22GPa. We observe Luttinger liquid (LL) behavior, a conductance ~T^alpha and a dynamic conductance ~V^alpha. With pressure conductance increases while alpha decreases, enabling us to test the theoretical prediction for LL on the alpha dependence of the T and V independent coefficient of the tunneling conductance, and to obtain the high frequency cut-off of LL modes. The possible transition to a fermi liquid at alpha -> 0 is unattainable, as nanotubes collapse to an insulating state at high pressures.

arXiv comment13 pages, 4 figures

References in corpus (4)

• Luttinger Liquid Behavior in Carbon Nanotubes
• Effective low-energy theory for correlated carbon nanotubes
• Electrical transport through carbon nanotube junctions created by mechanical manipulation
• Luttinger liquid behavior in multi-wall carbon nanotubes

Cited by in corpus (4)

• Infrared spectroscopic studies on unoriented single-walled carbon nanotube films under hydrostatic pressure
• Tomonaga-Luttinger liquids and Coulomb blockade in multiwall carbon nanotubes under pressure
• Voltage profile and four terminal resistance of an interacting quantum wire
• Anomalous behavior of the quasi-one-dimensional quantum material Na${}_2$OsO${}_4$ at high pressure