by Seibold, Goetz, Arpaia, Riccardo, Peng, Ying Ying, Fumagalli, Roberto, Braicovich, Lucio, Di Castro, Carlo, Grilli, Marco and Ghiringhelli, Giacomo Claudio and Caprara, Sergio
Abstract:
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. The strange metallic state of cuprates occurring in a broad region of their phase diagram outside the superconducting and pseudogapped regions remains a mystery. Here the authors consider the charge density fluctuations recently discovered in resonant X-ray experiments as a possible source of scattering and show that these fluctuations can account for the strange metallic behavior.
Reference:
Strange metal behaviour from charge density fluctuations in cuprates (Seibold, Goetz, Arpaia, Riccardo, Peng, Ying Ying, Fumagalli, Roberto, Braicovich, Lucio, Di Castro, Carlo, Grilli, Marco and Ghiringhelli, Giacomo Claudio and Caprara, Sergio), In COMMUNICATIONS PHYSICS, volume 4, 2021.
Bibtex Entry:
@article{ WOS:000607114400007,
Author = {Seibold, Goetz and Arpaia, Riccardo and Peng, Ying Ying and Fumagalli,
Roberto and Braicovich, Lucio and Di Castro, Carlo and Grilli, Marco and
Ghiringhelli, Giacomo Claudio and Caprara, Sergio},
Title = {{Strange metal behaviour from charge density fluctuations in cuprates}},
Journal = {{COMMUNICATIONS PHYSICS}},
Year = {{2021}},
Volume = {{4}},
Number = {{1}},
Month = {{JAN 4}},
Abstract = {{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. The strange
metallic state of cuprates occurring in a broad region of their phase
diagram outside the superconducting and pseudogapped regions remains a
mystery. Here the authors consider the charge density fluctuations
recently discovered in resonant X-ray experiments as a possible source
of scattering and show that these fluctuations can account for the
strange metallic behavior.}},
DOI = {{10.1038/s42005-020-00505-z}},
Article-Number = {{7}},
ISSN = {{2399-3650}},
ResearcherID-Numbers = {{Arpaia, Riccardo/Y-1247-2019
Caprara, Sergio/M-7683-2013
Grilli, Marco/C-6309-2009
peng, yingying/K-1805-2015
Ghiringhelli, Giacomo/D-1159-2014}},
ORCID-Numbers = {{Arpaia, Riccardo/0000-0003-4687-2376
Caprara, Sergio/0000-0001-8041-3232
Grilli, Marco/0000-0001-5607-7996
peng, yingying/0000-0002-2657-3590
Ghiringhelli, Giacomo/0000-0003-0867-7748}},
Unique-ID = {{WOS:000607114400007}},
}
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