Excitons are quasiparticles that are formed in insulators or semiconductors when an electron is promoted to a higher energy band, leaving a positively charged hole behind. At the presence of strong ...
A new study has found evidence of a new phase of matter predicted in the 1960s: the excitonic insulator, which has been keenly pursued by condensed matter physicists and 2D material scientists. The ...
In a surprising discovery, Princeton physicists have observed an unexpected quantum behavior in an insulator made from a material called tungsten ditelluride. This phenomenon, known as quantum ...
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