A new study adds to the growing evidence supporting a theory that strange electronic behaviors -- including high-temperature superconductivity and heavy fermion physics -- arise from quantum fluctuations of strongly correlated electrons.
If you can't find the ideal material, then design a new one. By manipulating the ordered arrangement of atoms in layered complex oxide materials, scientists have found a way to control their electronic band gaps, which determines the electrical behavior of the material and how it interacts with light.
Engineers have shone new light on an emerging family of solar-absorbing materials that could clear the way for cheaper and more efficient solar panels and LEDs. The materials, called perovskites, are particularly good at absorbing visible light, but had never been thoroughly studied in their purest form: as perfect single crystals. Using a new technique, researchers grew large, pure perovskite crystals and studied how electrons move through the material as light is converted to electricity.
Physicists have experimentally produced MÃ¶bius strips from the polarization of light, confirming a theoretical prediction that it is possible for light's electromagnetic field to assume this peculiar shape.