Unstable and elusive superconductors

摘要: Abstract We briefly review earlier and report original experimental results in the context of metastable or possible superconducting materials. show that applied electric field induces conducting state Copper Chloride (CuCl) whose characteristics resemble behavior sliding charge-density-wave(s) (CDW). discuss whether CDW collective transport similar ordered charge phase(s) may account for problem “high-temperature superconductivity” observed this other materials, including Cadmium Sulfide (CdS), metal–ammonia solutions, polymers, amorphous carbon tungsten oxides. also a local superconductivity occurs at surface graphite under deposition foreign atoms/molecules.