Abstract:
High-temperature superconductors are layered materials. The interlayer
transport provides a unique and susceptive probe to the superconducting
mechanism since it is controlled by excitations with momenta for which the
superconducting gap is maximal. I will show that the interlayer dynamics is
governed entirely by the pseudogap energy and the c-axis resistivity
satisfies a universal scaling law in the pseudogap phase. It suggests that
the superconducting pairing is intimately connected with the pseudogap and
the interlayer hopping is coherent.
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