Insulator or superconductor? Physicists find graphene is both
news.mit.edu
news.mit.edu
It’s still very interesting though (as things in Nature usually are). I’m a little surprised no one had looked at electrical conductivity with misaligned vdW epitaxy - it seems like the an obvious thing to look at to me. They’re still using micro mechanical cleavage (ie, peel it off with tape) - maybe it was a cleanliness or size issue? Maybe it’s just easy hindsight.
Not to say that it's doing much good here...
It took almost a century for electric cars to get good, it took almost half a century for reusable rockets to become practical and cost effective, it took decades for lasers to become ubiquitous, it took decades for the internet to mature into a part of daily life, etc, etc, etc.
I didn’t see a critical temperature for this in the article, only “100K” for related classes of material. Anyone know the Tc of this?
> The researchers continued to measure the electrical resistance of the material, and found that when they added a certain, small amount of electrons, the electrical current flowed without dissipating energy — just like a superconductor.
My understanding is "Poorly". As in not a superconductor for AC for current superconductors.
I'm starting to think that I'll see genetically engineered pro athletes before I get to see graphene powered gadgets. And probably I'll see true human level AI before mass market graphene as well.
> The two were encouraged to marry in a system with undertones of eugenics, the controversial gene-pool manipulation espoused by the Nazis and previously trumpeted by Beijing.
> It wasn't a national breeding program, it was a desire among Shanghai officials for them to get together," Larmer said. "But when Yao was born, everybody in the sports community in Shanghai and nationally knew he was something special."
While I agree that's unsavory, that's not what most would consider "genetically engineered."
Strangely, no mention of US' being really into it before WWII
Does this move the needle closer to being able to make the Meissner effect applicable in practical engineering?
It's interesting because it's very high temperature given certain properties of the material; if that is confirmed, it may allow greater understanding of superconductivity, which may allow other materials to work at higher temperatures.