Insulator or superconductor? Physicists find graphene is both (2018) (news.mit.edu)

I’m always interested in this topic. In the late 2000’s, as a 13 yo, I was getting direct marketing mail about Graphene - claiming it was going to change the world. In hindsight it was definitely some sort of investment scam, but it did pique my curiosity.

Since then, it’s comes up time to time, but I still haven’t heard of anyone commercializing it at scale.

Many superconductors are insulators at room temperature.

The interesting part here is that it seems to depend on the angle between overlayed graphene sheets.

Would you call this a super-semiconductor?