The first measurements of magnetic excitations rippling through a nickelate superconductor show it has a strong kinship with cuprate superconductors, like the one at left, as opposed to the more distant neighborly relationship depicted at right. The study by researchers at SLAC, Stanford and Diamond Light Source revealed important similarities and subtle differences between the two materials, which conduct electricity with no loss at relatively warm temperatures.
Joshua Stein, front, a Sandia National Laboratories engineer and director of a new Perovskite Photovoltaic Accelerator for Commercializing Technologies Center, and Charles Robinson, a Sandia technologist, examine a solar module. The new center will determine the best performance and reliability tests for perovskite solar modules.
(top left) An illustration of the HiPIMS process (top right) The energy distribution of tungsten ions arriving at the substrate over time. At short times, there are a large proportion of ions with high energy. (bottom) Stress-free tungsten films created with the selective pulsed bias technique. (a) Plan view transmission electron microscopy (TEM) image of the film; (b) a higher resolution image; (c) reconstructions of the selected area in (b) based on inverse Fourier transforms, with two regions magnified.