Superconducting fiber with transition temperature up to 7.43 K in Nb2PdxS5-delta (0< x <0.6)

TL;DR

This paper reports the discovery of superconducting Nb2PdxS5-delta fibers with transition temperatures up to 7.43 K, highlighting their potential for flexible high-power transmission and electronic applications.

Contribution

It introduces superconducting fibers with high transition temperatures and robustness across compositional ranges, offering a new approach for superconducting wiring systems.

Findings

Superconductivity observed up to 7.43 K in Nb2PdxS5-delta fibers.

Superconductivity is robust across a wide range of Pd and S contents.

Fibers with diameters of 0.3-3 micrometers can be used for high-power transmission.

Abstract

Wiring systems powered by high-efficient superconductors have long been a dream of scientists, but researchers have faced practical challenges such as finding flexible materials. Here we report superconductivity in Nb2PdxS5-delta fibers with transition temperature up to 7.43 K, which have typical diameters of 0.3-3 micrometer. Superconductivity occurs in a wide range of Pd and S contents, suggesting that the superconductivity in this system is very robust. Long fibers with suitable size provide a new route to high-power transmission cables and electronic devices.