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Hydrogen sulfide—the stuff that makes rotten eggs stink—becomes a superconductor at a record high temperature, physicists in Germany have shown. When solidified, the compound conducts electricity without resistance at 203.5 K

 

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Discussion Starter · #3 · (Edited)
Just add in some carbon and you get superconductivity all the way up to room temperature.

I wonder if this will ever be used for superconductive levitation that doesn’t require cryogenic cooling.


The material is synthesized by compressing methane (CH4), hydrogen sulfide (H2S) and hydrogen (H2) in a diamond anvil cell and illuminating with a 532 nm green laser.[2]

 

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203.5 deg K is of course approx -70 deg C which if you've been following the virus news is the same temp that makes the Pfizer vaccine difficult to transport.
 
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