University of Cambridge researchers have discovered that a material already known for its peculiar electrical properties appears to behave as both a conductor and an insulator at the same time.

I wonder what other conductors we can find. It looks like when you find a conductor, you also find an insulator. Fran: Yes you are right, conductors and insulators are usually found together to ...

If these wave functions spread out, the material is a conductor, if they remain localised, it is an insulator. Incidentally, over fifty years ago, Philip Anderson showed that impurities and ...