Due to magnetism iron should – theoretically – be a poor superconductor. Nevertheless certain ironbased materials possess fine superconducting properties. Why? Because the five unbound electrons found in iron – as a result of individual modes of operation, it turns out – facilitate superconductivity. This new, long sought-for explanation – appearing in this weeks issue Read more about Iron secrets behind superconductors unlocked[…]
Small magnetic fields from the human body can usually only be picked up by very sensitive superconducting magnetic field sensors that have to be cooled by liquid helium to near absolute zero (which is minus 273 degrees Celsius). But now researchers from the Niels Bohr Institute at the University of Copenhagen have developed a much Read more about Ultra sensitive magnetic field sensor[…]
All light sources work by absorbing energy – for example, from an electric current – and emit energy as light. But the energy can also be lost as heat and it is therefore important that the light sources emit the light as quickly as possible, before the energy is lost as heat. Superfast light sources Read more about Superfast light source made from artificial atom[…]