2019
DOI: 10.1038/s41467-019-11167-z
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Observation of two types of charge-density-wave orders in superconducting La2-xSrxCuO4

J.-J. Wen,
H. Huang,
S.-J. Lee
et al.

Abstract: The discovery of charge- and spin-density-wave (CDW/SDW) orders in superconducting cuprates has altered our perspective on the nature of high-temperature superconductivity (SC). However, it has proven difficult to fully elucidate the relationship between the density wave orders and SC. Here, using resonant soft X-ray scattering, we study the archetypal cuprate La 2- x Sr x CuO 4 (LSCO) over a broad doping range. We reveal … Show more

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Cited by 109 publications

(106 citation statements)
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“…In the context of LSCO, we now discuss some aspects which need further investigation. The RIXS experiment [29] in LSCO suggests a CDW-driven phonon softening, implying that in the doping regime considered in the experiment, there might be no signature of the magnetic order and only CDW correlations survive, which is also in accordance with previous experimental observations [12,13]. Hence, our theoretical model which involves coupling between phonons, CDW and SC is a consistent model for describing phonon softening in the vicinity of the topological transition in this material.…”
Section: Discussionsupporting
confidence: 88%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…In the context of LSCO, we now discuss some aspects which need further investigation. The RIXS experiment [29] in LSCO suggests a CDW-driven phonon softening, implying that in the doping regime considered in the experiment, there might be no signature of the magnetic order and only CDW correlations survive, which is also in accordance with previous experimental observations [12,13]. Hence, our theoretical model which involves coupling between phonons, CDW and SC is a consistent model for describing phonon softening in the vicinity of the topological transition in this material.…”
Section: Discussionsupporting
confidence: 88%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…The charge order of optimally doped LSCO exhibits a short correlation length, ranging from 22 Å to 12 Å. Consistent with previous results of LSCO, the CDW are slightly suppressed in the superconducting phase as the temperature is decreased across T C [5,9].…”
Section: B Charge Order Of Lscosupporting
confidence: 90%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…As the temperature decreases to T = 43 K (below T sdw ≈ 50 K), the CDW signal becomes considerably stronger. Further cooling to T = 25 K (situated below T pdw ), results in a distinctly sharper CDW stripe ordering peak, characterized by a correlation length (ξ K ≈ 61 Å) that surpasses 8 unit cells (8a ≈ 30 Å) along the a-axis, in line with prior studies [11,49]. In addition, at T = 25 K, an excess of intensity distribution around K/2 is observed (indicated by the arrow in the figure).…”
supporting
confidence: 87%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.