Strange metal behaviour from charge density fluctuations in cuprates
| Autor: | G. Seibold, R. Fumagalli, Riccardo Arpaia, Yingying Peng, Giacomo Claudio Ghiringhelli, Sergio Caprara, Lucio Braicovich, Carlo Di Castro, Marco Grilli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
superconduttori cuprati
QC1-999 FOS: Physical sciences General Physics and Astronomy 02 engineering and technology Electron Astrophysics 01 natural sciences Superconductivity (cond-mat.supr-con) Metal Condensed Matter::Superconductivity 0103 physical sciences Cuprate stato metallico anomalo 010306 general physics Phase diagram Physics Superconductivity Condensed matter physics Scattering Condensed Matter - Superconductivity Charge density NORMAL-STATE SCATTERING RATE TEMPERATURE ORDER MODEL SUPERCONDUCTIVITY 021001 nanoscience & nanotechnology QB460-466 visual_art visual_art.visual_art_medium Condensed Matter::Strongly Correlated Electrons 0210 nano-technology Pseudogap |
| Zdroj: | Communications Physics, Vol 4, Iss 1, Pp 1-6 (2021) Communications physics 4 (2021). doi:10.1038/s42005-020-00505-z info:cnr-pdr/source/autori:Seibold G.; Arpaia R.; Peng Y.Y.; Fumagalli R.; Braicovich L.; Di Castro C.; Grilli M.; Ghiringhelli G.C.; Caprara S./titolo:Strange metal behaviour from charge density fluctuations in cuprates/doi:10.1038%2Fs42005-020-00505-z/rivista:Communications physics/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:4 'Communications Physics ', vol: 4, pages: 7-1-7-6 (2021) |
| ISSN: | 2399-3650 |
| DOI: | 10.1038/s42005-020-00505-z |
| Popis: | Besides the mechanism responsible for high critical temperature superconductivity, the grand unresolved issue of the cuprates is the occurrence of a strange metallic state above the so-called pseudogap temperature $T^*$. Even though such state has been successfully described within a phenomenological scheme, the so-called Marginal Fermi-Liquid theory, a microscopic explanation is still missing. However, recent resonant X-ray scattering experiments identified a new class of charge density fluctuations characterized by low characteristic energies and short correlation lengths, which are related to the well-known charge density waves. These fluctuations are present over a wide region of the temperature-vs-doping phase diagram and extend well above $T^*$. Here we investigate the consequences of charge density fluctuations on the electron and transport properties and find that they can explain the strange metal phenomenology. Therefore, charge density fluctuations are likely the long-sought microscopic mechanism underlying the peculiarities of the metallic state of cuprates. 18 pages including Supplementary Informations, 10 figures |
| Databáze: | OpenAIRE |
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