 |
This article may rely excessively on sources too closely associated with the subject, potentially preventing the article from being verifiable and neutral. Please help improve it by replacing them with more appropriate citationstoreliable, independent, third-party sources. (November 2021) (Learn how and when to remove this message)
|
The condensate of electron quadruplets is a proposed state of matter in which Cooper pairs are formed but do not exhibit long-range order, but electron quadruplets do.[1] One example of the proposed electron quadruplet condensates is charge-4e superconductivity.[2] Another example is "quartic metal" phase [3] [4] is related to but distinct from those superconductors explained by the standard BCS theory; rather than expelling magnetic field lines as in the Meissner effect, it generates them, a spontaneous Nernst effect that indicates the breaking of time-reversal symmetry.[5] After the theoretical possibility was raised, observations consistent with electron quadrupling were published using hole-doped Ba1-xKxFe2As2 in 2021.[5][6]
 | This physics-related article is a stub. You can help Wikipedia by expanding it. |
