Superconducting Fiber with Transition Temperature up to 7.43 K in Nb_2Pd_xS_(5-δ) (0.6 ＜x＜1)

摘要

Wiring systems powered by highly 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 Nb_2Pd_xS_(5-δ) fibers with transition temperature up to 7.43 K, which have typical diameters of 0.3-3 μm. Superconductivity occurs in a wide range of Pd (0.6 ＜ x ＜ l) and S (0 ＜ δ ＜0.6l) 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.