Quasi-one-dimensional superconductivity above 300 K and quantum phase slips in individual carbon nanotubes

Details Quasi-one-dimensional superconductivity above 300 K and quantum phase slips in individual carbon nanotubes Quasi-one-dimensional superconductivity above 300 K and quantum phase slips in individual carbon nanotubes

2002-08-09

arxiv.org/abs/cond-mat/0208198v4

Physics

Condensed Matter

Superconductivity

7 pages, 6 figures

Scientific paper

A great number of the existing data for electrical transport, the Altshuler Aronov Spivak and Aharonov Bohm effects, as well as the tunneling spectra of individual carbon nanotubes can be well explained by theories of the quantum phase slips in quasi-one-dimensional superconductors. The existing data consistently suggest that the mean-field superconducting transition temperature T_{c0} in both single-walled and multi-walled carbon nanotubes could be higher than 600 K. The quantum phase slip theories naturally explain why the on-tube resistances in the closely packed nanotube bundles or in the individual multi-walled nanotubes with large diameters approach zero at room temperature, while a single tube with a small diameter has a substantial resistance.

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