Preparation and physical properties of large-sized 2M-WS₂ flexible superconducting material

Flexible superconducting materials are essential key materials in applications such as superconducting quantum circuits and low-temperature detection devices. In this study, we prepared the flexible superconducting material based on transition metal disulfide 2M-WS₂ using the ultrasonic assisted liquid-phase exfoliation method, and characterized its superconductivity as well as the superconducting performance after bending. The results indicate that the preparation methods we have developed can produce flexible superconducting narrow wires up to 30 cm in length, with a superconducting zero-resistance temperature of approximately 5.1 K. Moreover, the superconducting properties remain basically unchanged under bending conditions. It is worth noting that this preparation method has significant advantages of simple process and strong scalability. This study provides useful reference for exploring new preparation methods of flexible superconducting materials.