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Signature of quantu...
Signature of quantum criticality in cuprates by charge density fluctuations
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- Arpaia, Riccardo, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Martinelli, L. (author)
- Politecnico di Milano,Polytechnic University of Milan
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- Sala, Marco Moretti (author)
- Politecnico di Milano,Polytechnic University of Milan
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- Caprara, S. (author)
- Universita degli Studi di Roma la Sapienza,Sapienza University of Rome
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- Nag, Abhishek (author)
- Diamond Light Source
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- Brookes, Nicholas B. (author)
- European Synchrotron Radiation Facility (ESRF)
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- Camisa, Pietro (author)
- Politecnico di Milano,Polytechnic University of Milan
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- Li, Qizhi (author)
- Beijing University of Technology
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- Gao, Qiang (author)
- Chinese Academy of Sciences
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- Zhou, Xingjiang (author)
- Chinese Academy of Sciences
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- Garcia-Fernandez, M. (author)
- Diamond Light Source
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- Zhou, Ke Jin (author)
- Diamond Light Source
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- Schierle, Enrico (author)
- Helmholtz Zentrum,Helmholtz Center
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- Bauch, Thilo, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Peng, Y. Y. (author)
- Beijing University of Technology
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- Di Castro, C. (author)
- Universita degli Studi di Roma la Sapienza,Sapienza University of Rome
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- Grilli, M. (author)
- Universita degli Studi di Roma la Sapienza,Sapienza University of Rome
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- Lombardi, Floriana, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Braicovich, Lucio (author)
- European Synchrotron Radiation Facility (ESRF),Politecnico di Milano,Polytechnic University of Milan
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- Ghiringhelli, Giacomo (author)
- Politecnico di Milano,Polytechnic University of Milan
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Nature Communications. - 2041-1723 .- 2041-1723. ; 14:1
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Abstract
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- The universality of the strange metal phase in many quantum materials is often attributed to the presence of a quantum critical point (QCP), a zero-temperature phase transition ruled by quantum fluctuations. In cuprates, where superconductivity hinders direct QCP observation, indirect evidence comes from the identification of fluctuations compatible with the strange metal phase. Here we show that the recently discovered charge density fluctuations (CDF) possess the right properties to be associated to a quantum phase transition. Using resonant x-ray scattering, we studied the CDF in two families of cuprate superconductors across a wide doping range (up to p = 0.22). At p* ≈ 0.19, the putative QCP, the CDF intensity peaks, and the characteristic energy Δ is minimum, marking a wedge-shaped region in the phase diagram indicative of a quantum critical behavior, albeit with anomalies. These findings strengthen the role of charge order in explaining strange metal phenomenology and provide insights into high-temperature superconductivity.
Subject headings
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Arpaia, Riccardo ...
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Martinelli, L.
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Sala, Marco More ...
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Caprara, S.
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Nag, Abhishek
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Brookes, Nichola ...
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show more...
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Camisa, Pietro
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Li, Qizhi
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Gao, Qiang
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Zhou, Xingjiang
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Garcia-Fernandez ...
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Zhou, Ke Jin
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Schierle, Enrico
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Bauch, Thilo, 19 ...
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Peng, Y. Y.
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Di Castro, C.
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Grilli, M.
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Lombardi, Floria ...
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Braicovich, Luci ...
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Ghiringhelli, Gi ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Theoretical Chem ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Nature Communica ...
- By the university
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Chalmers University of Technology