Doped Rare Earth Iron Oxyarsenides Properties May Mean An Entirely New Kind Of Superconductor
Superconductivity was discovered in 1911 and has perplexed, astounded and inspired scientists since, but to most it can be thought of as "frictionless" electricity. In conventional electricity, heat is generated by friction as electrons (electric charge carriers) collide with atoms and impurities in the wire. This heating effect is good for appliances such as toasters or irons, but not so good for most other applications that use electricity.
In superconductors, however, electrons glide unimpeded between atoms without friction. If scientists and engineers ever harness this phenomenon at or…