An exotic 3-D racetrack for electrons in ultrathin slices of a crystal has been observed for the first time, by a group of researchers. The ultimate goal of this research is to approach the lossless conduction of another class of materials, known as superconductors, but without the need for the extreme, freezing temperatures that superconductors require.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2016/09/160923121052.htm
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