Catherine Pépin, Charge order and Strange metals in cuprate superconductors скачать в хорошем качестве

Catherine Pépin, Charge order and Strange metals in cuprate superconductors

Catherine Pépin. Session D2: Physics of superconducting materials Abstract. Charge orders and charge uctuations have been ubiquitously observed in the phase diagram of Cuprate superconductors. We will review the experimental status of these various observations, dierentiating the under-doped region and the optimally-doped and over-doped ones. Various theories have been advanced to explain the presence of these orders and their implication for our understanding of the pseudo-gap, from the idea of "vestigial order" to the one of "uctuating Pair Density Wave (PDW)". We will discuss these theoretical approaches in direct comparison with experiments. We will then introduce a proposal of "fractionalization of a PDW" in order to explain the pseudo-gap state. We will show that this idea produces a strong phenomenology, especially ARPES experiments, and giving a clue for the puzzling transport properties recently reported in the optimally doped and over-doped regions. We will then focus on the strange metal phase of those compounds and make a proposal for electric transport in this phase.