For 10 points, name these devices typically operating at very low temperatures where they experience no electrical resistance.
The first organic material of this type produced, (TMTSF)2PF6, has been shown to resist external quenching. Defects facilitate these materials' maintenance in a state with 300 nanometer normal cores. That is the characteristic vortex state exhibited in one class of these materials between two critical temperatures. In what is termed solid solutions, these devices can be constructed from lanthanum-copper-oxide or yttrium-barium-copper-oxide. Two of them separated by a thin insulating layer can experience tunneling of condensed electron pairs through a Josephson junction, and these devices are capable of becoming perfectly diamagnetic at their transition temperature, which allows them to completely expel magnetic fields in the Meissner Effect. For 10 points, name these devices typically operating at very low temperatures where they experience no electrical resistance.
The first organic material of this type produced, (TMTSF)2PF6, has been shown to resist external quenching.
{superconductors} [accept {type II superconductors}, but not “{type} I”]