A graphene addition for enhancing the critical current density of Bi-2223 superconductors

Superconductors are materials that offer zero electric resistance to the flow of current on being cooled down below a certain critical temperature. Typically, superconductors have a very low critical temperature, close to absolute zero. However, a class of superconductors, known as high-temperature superconductors (HTS) have a critical temperature above 77 Kelvin, the boiling point of liquid nitrogen. They have been extensively used for the development of superconducting devices in many industries.