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The Strange-Metal Behavior of Cuprates

  • Recent resonant X-ray scattering experiments on cuprates allowed to identify a new kind of collective excitations, known as charge density fluctuations, which have finite characteristic wave vector, short correlation length and small characteristic energy. It was then shown that these fluctuations provide a microscopic scattering mechanism that accounts for the anomalous transport properties of cuprates in the so-called strange-metal phase and are a source of anomalies in the specific heat. In this work, we retrace the main steps that led us to attributing a central role to charge density fluctuations in the strange-metal phase of cuprates, discuss the state of the art on the issue and provide an in-depth analysis of the contribution of charge density fluctuations to the specific heat.

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Author: Giovanni Mirarchi, Götz SeiboldORCiD, Carlo Di Castro, Marco GrilliORCiD, Sergio CapraraORCiD
URL:https://www.mdpi.com/2410-3896/7/1/29/htm
DOI:https://doi.org/10.3390/condmat7010029
ISSN:2410-3896
Title of the source (English):Condensed Matter
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2022
Tag:charge density fluctuations; cuprates; dynamical quantum criticality; high-temperature superconductors; strange metal
Volume/Year:7
Issue number:1
First Page:1
Last Page:17
Article number:29
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Computational Physics
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