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DTSTART;TZID=Europe/Paris:20230620T140000
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SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Critical Nematic Correlations throughout the Superconducting Doping Range in BSCO\nBy Prof. Erica W. Carlson\, Purdue University\, West Lafayette\, USA.  In hybrid format and Room Boreau\, building C\, 2nd floor\, ESPCI Paris-PSL. \n \n\nRapidly expanding experimental capabilities have led to a growing wealth of data on multiple length scales\, revealing rich electronic textures at the nanoscale and mesoscale in many correlated oxides. We have defined new conceptual frameworks for interpreting and understanding the multiscale electronic textures observed at the surface of these materials by employing theoretical tools from fractal mathematics and disordered statistical mechanics. This allows us to use the rich spatial information available from scanning probes in order to diagnose criticality from the spatial structure alone\, without the need of a sweep of temperature or external field.  These new methods have enabled the discovery of universal\, fractal electronic textures across a variety of quantum materials. By applying these cluster techniques to scanning tunneling microscopy on Bi2−zPbzSr2−yLayCuO6+x\, and computing new critical exponents at free surfaces including that of the pair connectivity correlation function\, we show that the charge modulations in this material are locally one dimensional\, and moreover that they arise from 3D criticality throughout the entire superconducting doping range. \nReferences:\nNature Commun. 10\, 4568 (2019)\nNature Commun. 14\, 2622 (2023)\n\n\n\nZoom link: https://espci.zoom.us/j/87965397227?pwd=RGhWSXBZd0RXY0RpQkN2MDNSdUpnUT09\nID: 879 6539 7227\nPassword: JHdeBoer
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-112/
LOCATION:A distance / En ligne
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