Insulating, superconducting and large-compressibility phases in nanotube ropes

TL;DR

This paper introduces a new computational approach to study the superconducting properties of carbon nanotube ropes, accounting for interaction renormalization and Coulomb screening, bridging 1D and 3D physics to estimate critical temperatures.

Contribution

It presents a novel computational framework that models superconductivity in nanotube ropes across different dimensional regimes, connecting theory with recent experimental findings.

Findings

Good estimates of critical temperature based on rope parameters

Demonstrates transition from 1D to 3D superconducting behavior

Provides insights into Coulomb screening effects in nanotube ropes

Abstract

The superconducting properties of carbon nanotube ropes are studied using a new computational framework that incorporates the renormalization of intratube interactions and the effect of intertube Coulomb screening. This method allows to study both the limits of thin and thick ropes ranging from purely one-dimensional physics to the setting of three-dimensional Cooper-pair coherence, providing good estimates of the critical temperature as a function of the rope physical parameters. We discuss the connection of our results with recent experiments.