ARGONNE, Illinois, March 25 (TNSjou) -- The U.S. Department of Energy Argonne National Laboratory issued the following news release: * * * Now you see it, now you don't: Material can transition between quantum states Extracting and restoring potassium from layers of nickel and sulfur enables switching between two electronic states The switchable material offers potential functionality for devices such as transistors and sensors. * A team of scientists led by the U.S. Department of Energy's  more