The nature of the superconducting state in ferromagnetic superconductors is currently under debate.

This has the effect of increasing the conductivity even before the system has condensed into the superconducting state.

Researchers used the measurements to estimate the value of the critical current, or how much electricity the material can carry in its superconducting state.

All this occurs in magnetic fields very much above the maximum tolerated by the superconducting state.

The tungsten metal sensors are held at the critical temperature so they are in the superconducting state.

Tantalum in superconducting state can carry large amount of current as compared to its normal state.

Under steady state conditions and in the superconducting state, the coil resistance is negligible.

This leads to energy dissipation and causes the material to display a small amount of electrical resistance while in the superconducting state.

However, another group working in the US believes it has gone some way to understanding the link between high pressures and the superconducting state.

One required liquid nitrogen so that the superconducting material would actually be in a superconducting state.