Method of making a low resistivity electrical connection between an electrical conductor and an iron pnictide superconductor involves connecting the electrical conductor and superconductor using a tin or tin-based material therebetween, such as using a tin or tin-based solder. The superconductor can be based on doped AFe2As2, where A can be Ca, Sr, Ba, Eu or combinations thereof for purposes of illustration only.
US 8,450,246 B2
Iowa State University Research Foundation, Inc.
Tanatar, Makariy A.; Prozorov, Ruslan; Ni, Ni; Bud'ko, Sergey L.; and Canfield, Paul C., "Low resistivity contact to iron-pnictide superconductors" (2013). Iowa State University Patents. 279.