Excitonic insulators: Experimental observation of a new class of materials

A University of Wollongong / Monash University collaboration has found evidence of a new phase of matter predicted in the 1960s: the excitonic insulator.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/excitonic-insulators-experimental-observation-of-a-new-class-of-materials