Results 11 to 20 of about 19,027 (255)

Pseudogap and Fermi-Surface Topology in the Two-Dimensional Hubbard Model

open access: yesPhysical 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 ...
Mathias S Scheurer   +2 more
exaly   +2 more sources

Wiedemann-Franz Law and Abrupt Change in Conductivity across the Pseudogap Critical Point of a Cuprate Superconductor

open access: yesPhysical Review X, 2018
The thermal conductivity κ of the cuprate superconductor La_{1.6-x}Nd_{0.4}Sr_{x}CuO_{4} was measured down to 50 mK in seven crystals with doping from p=0.12 to p=0.24, both in the superconducting state and in the magnetic field-induced normal state.
B Michon   +2 more
exaly   +2 more sources

Coincident onset of charge order and pseudogap in a homogeneous high-temperature superconductor [PDF]

open access: yesNature Communications
Understanding high-temperature superconductivity in cuprates requires knowledge of the metallic phase it evolves from, particularly the pseudogap profoundly affecting the electronic properties at low carrier densities.
D. Betto   +13 more
doaj   +2 more sources

Is the pseudogap a topological state? [PDF]

open access: yesJournal of Magnetism and Magnetic Materials, 2014
We conjecture that the pseudogap is an inhomogeneous condensate above the homogeneous state whose existence is granted by topological stability. We consider the simplest possible order parameter theory that provides this interpretation of the pseudogap ...
Cariglia, Marco   +2 more
core   +2 more sources

Ultrabroadband High Photoresponsivity at Room Temperature Based on Quasi‐1D Pseudogap System (TaSe4)2I [PDF]

open access: yesAdvanced Science
Narrow 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
doaj   +2 more sources

Observation of Magnetic Pseudogap Behavior in Phosphorus-Doped Silicon. [PDF]

open access: yesAdv Sci (Weinh)
Phosphorus‐doped silicon presents a promising platform for quantum computing and hosts a Kondo condensate state featuring a pseudogap. Thermodynamic and magnetic resonance measurements reveal that this pseudogap behavior involves critical spin fluctuations, suggesting that overlapping Kondo clouds form a correlated coherent magnetic ground state ...
Lee S   +16 more
europepmc   +2 more sources

Pseudogap in electron-doped cuprates: Strong correlation leading to band splitting [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America
M Horio, H Suzuki, Yosuke Nonaka
exaly   +2 more sources

Nematicity in a cuprate superconductor revealed by angle-resolved photoemission spectroscopy under uniaxial strain

open access: yesnpj Quantum Materials, 2021
The nature of the pseudogap and its relationship with superconductivity are one of the central issues of cuprate superconductors. Recently, a possible scenario has been proposed that the pseudogap state is a distinct phase characterized by spontaneous ...
S. Nakata   +11 more
doaj   +1 more source

Pseudogaps in nested antiferromagnets [PDF]

open access: yesPhysical Review B, 2004
4 pages, 4 ...
Pepin, C., Norman, M. R.
openaire   +3 more sources

Monte Carlo study of the pseudogap and superconductivity emerging from quantum magnetic fluctuations

open access: yesNature 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
doaj   +1 more source

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