A superconducting wire comprises a core region (2) of a superconducting material, an outermost region (3) of a normal-conducting material for stabilizing the superconducting material, and at least one intermediate region (4) disposed between the core region and the outermost region. The intermediate region includes layers (6) of a paramagnetic salt for increasing the heat capacity of the wire and layers (5) of a nor- malconducting material which are arranged alternatingly in the longitudinal or circumferential direction of the wire.