Fractals promise higher-temperature superconductors

 作者:郇鳆岈     |      日期:2017-12-22 08:01:00
By Anil Ananthaswamy SUPERCONDUCTORS could be made to work at higher temperatures than ever before, thanks to the discovery that one such material has an internal structure that behaves like a fractal. Its structure is also similar to the way the internet and some social networks are connected up. With no electrical resistance, superconductors can conduct a large current with no energy lost as heat. This makes them extremely useful for a host of applications, from maglev trains to particle accelerators. However, most superconducting materials only work at temperatures close to absolute zero,