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https://doi.org/10.1038/srep44008
Title: | Entropic origin of pseudogap physics and a mott-slater transition in cuprates | Authors: | Markiewicz, R.S Buda, I.G Mistark, P Lane, C Bansil, A |
Keywords: | family human ordo physics article |
Issue Date: | 2017 | Publisher: | Nature Publishing Group | Citation: | Markiewicz, R.S, Buda, I.G, Mistark, P, Lane, C, Bansil, A (2017). Entropic origin of pseudogap physics and a mott-slater transition in cuprates. Scientific Reports 7 : 44008. ScholarBank@NUS Repository. https://doi.org/10.1038/srep44008 | Rights: | Attribution 4.0 International | Abstract: | We propose a new approach to understand the origin of the pseudogap in the cuprates, in terms of bosonic entropy. The near-simultaneous softening of a large number of different q-bosons yields an extended range of short-range order, wherein the growth of magnetic correlations with decreasing temperature T is anomalously slow. These entropic effects cause the spectral weight associated with the Van Hove singularity (VHS) to shift rapidly and nearly linearly toward half filling at higher T, consistent with a picture of the VHS driving the pseudogap transition at a temperature ?T?. As a byproduct, we develop an order-parameter classification scheme that predicts supertransitions between families of order parameters. As one example, we find that by tuning the hopping parameters, it is possible to drive the cuprates across a transition between Mott and Slater physics, where a spin-frustrated state emerges at the crossover. © The Author(s) 2017. | Source Title: | Scientific Reports | URI: | https://scholarbank.nus.edu.sg/handle/10635/179729 | ISSN: | 2045-2322 | DOI: | 10.1038/srep44008 | Rights: | Attribution 4.0 International |
Appears in Collections: | Elements Staff Publications |
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