pbw@cbosgd.UUCP (Paul Westerfield) (01/13/84)
Does anyone out in net land happen to be familiar enough with very low temperature physics to explain the low level characteristics that allow metals to exhibit superconductance characteristics? From a purely physical viewpoint, it seems that there would be NO conductance at absolute zero, this being defined as the minimum energy state, and hence implying no electron movement (conductance). Is this true and it's only states NEAR 0 deg. K that are valid superconductance regions for certain metals? As far as I've heard, some physicists would be happy just to get this effect at even 30 deg. K, but are currently working around 4 deg. K. Any info? Paul B. Westerfield AT&T Bell Labs - Columbus