nostr:npub1w4swqedal6gcw23ndd93tkkdy3zj2l6zjdjvzrhu8rnw0k8lc8lswzprhz you have a better grasp on this than me
Discussion
Sauces
First ZERO resistance measurement is in but not at room temp.
Occurred at -170°C
But the also observed a second resistance mode around 250°K.
Personally I think enrichment for Pb-207, precious metal doping (rather than copper) and resistance directionality are going to become factors. Material seems to have a bunch of complex behaviours that are still not isolated by the labs.
Rampant progress continues. 