A team of researchers affiliated with a host of institutions in Japan and one in the U.K has observed Fermi pockets during experiments with a five-layered cuprate, confirming theories. In their paper published in the journal Science, the group describes their study of the cuprate Ba2Ca4Cu5O10(F,O)2 and what they learned about superconductivity. Inna Vishik with the University of California Davis, has published a Perspective piece in the same journal issue giving background on superconductivity research involving cuprates and their transition temperatures and outlining the work done by the team in Japan.
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Source: Phys.org