Spectral signature of periodic modulation and shifting of pseudogap state in moiré system [PDF]
Nature CommunicationsThe nature of the pseudogap state is widely believed as a key to understanding the pairing mechanism underlying unconventional superconductivity. Although pseudogap states have recently been realized in moiré systems with extensive gate tunability, their
Yingzhuo Han +9 more
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Pseudogap in electron-doped cuprates as a thermal precursor to magnetism [PDF]
Nature CommunicationsWe study pseudogap behavior in a metal near an antiferromagnetic instability and apply the results to electron-doped cuprates. We associate pseudogap behavior with thermal magnetic fluctuations and compute the fermionic self-energy along the Fermi ...
Emmanouil K. Kokkinis +1 more
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Fermi liquid-like behaviour of cuprates in the pseudogap phase simulated via T-dependent electron-boson spectral density [PDF]
Scientific Reports, 2023 We investigated the temperature- and frequency-dependent optical scattering rates in the pseudogap phase of cuprates using model pseudogap and electron-boson spectral density (EBSD) functions.
Hwiwoo Park, Jungseek Hwang
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Fermi surface and pseudogap in highly doped Sr2IrO4 [PDF]
npj Quantum MaterialsThe fate of the Fermi surface in bulk electron-doped Sr2IrO4 remains elusive, as does the origin and extension of its pseudogap phase. Here, we use high-resolution angle-resolved photoelectron spectroscopy (ARPES) to investigate the electronic structure ...
Y. Alexanian +20 more
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Temperature-Independent Cuprate Pseudogap from Planar Oxygen NMR
Condensed Matter, 2020 Planar oxygen nuclear magnetic resonance (NMR) relaxation and shift data from all cuprate superconductors available in the literature are analyzed. They reveal a temperature-independent pseudogap at the Fermi surface, which increases with decreasing ...
, Marija Avramovska, Robin Guehne
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Pseudogap and Fermi-Surface Topology in the Two-Dimensional Hubbard Model
Physical Review X, 2018 One of the distinctive features of hole-doped cuprate superconductors is the onset of a “pseudogap” below a temperature T^{*}. Recent experiments suggest that there may be a connection between the existence of the pseudogap and the topology of the Fermi ...
Antoine Georges +2 more
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Ultrabroadband High Photoresponsivity at Room Temperature Based on Quasi‐1D Pseudogap System (TaSe4)2I [PDF]
Advanced ScienceNarrow bandgap materials have garnered significant attention within the field of broadband photodetection. However, the performance is impeded by diminished absorption near the bandgap, resulting in a rapid decline in photoresponsivity within the mid ...
Jialin Li +8 more
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Pseudogap in electron-doped cuprates: Strong correlation leading to band splitting [PDF]
Proceedings of the National Academy of Sciences of the United States of AmericaZhi-Xun Shen, Masatoshi Imada
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Pseudogap suppression by competition with superconductivity in La-based cuprates
Physical Review Research, 2022 We carried out a comprehensive high-resolution angle-resolved photoemission spectroscopy (ARPES) study of the pseudogap interplay with superconductivity in La-based cuprates.
J. Küspert +25 more
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Monte Carlo study of the pseudogap and superconductivity emerging from quantum magnetic fluctuations
Nature Communications, 2022 The origin of pseudogap in high-T c superconductors remains a big puzzle. Here, the authors report numerical evidence of pseudogap behavior employing Quantum Monte Carlo algorithm emerging from pairing fluctuations in a quantum-critical non-Fermi liquid,
Weilun Jiang +6 more
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