Results 91 to 100 of about 19,027 (255)
Doped Mott insulators are insulators: hole localization in the cuprates
, 2005 We demonstrate that a Mott insulator lightly doped with holes is still an insulator at low temperature even without disorder. Hole localization obtains because the chemical potential lies in a pseudogap which has a vanishing density of states at zero ...
B. L. Altshuler +3 more
core +1 more source
Pseudogap of Color Superconductivity [PDF]
Progress of Theoretical Physics Supplement, 2004 We show that the pseudogap of the quark density of states is formed in hot quark matter as a precursory phenomenon of the color superconductivity on the basis of a low-energy effective theory. We clarify that the soft mode of the di-quark pair field gives rise to a peculiar behavior of the quark dispersion relation and a short life-time of the ...
Kitazawa, Masakiyo +3 more
openaire +2 more sources
Quantifying Twist Angles in Cuprate Heterostructures with Anisotropic Raman Signatures
Advanced Physics Research, Volume 4, Issue 12, December 2025.A fully non‐invasive polarization‐resolved Raman spectroscopy technique is demonstrated for quantifying twist angles in Bi2Sr2CaCu2O8+X cuprate heterostructures. By analyzing anisotropic vibrational modes, particularly the A1g mode at ~116 cm−1, distinct optical fingerprints of interlayer misalignment are identified, enabling precise and reliable twist‐
Flavia Lo Sardo +11 more
wiley +1 more source
The composite operator method route to the 2D Hubbard model and the cuprates
Condensed Matter Physics, 2018 In this review paper, we illustrate a possible route to obtain a reliable solution of the 2D Hubbard model and an explanation for some of the unconventional behaviours of underdoped high-T_c cuprate superconductors within the framework of the composite ...
A. Di Ciolo, A. Avella
doaj +1 more source
Persistence of pseudogap formation in quasi-2D systems with arbitrary carrier density
, 1998 The existence of a pseudogap above the critical temperature has been widely used to explain the anomalous behaviour of the normal state of high-temperature superconductors.
Abrikosov +30 more
core +1 more source
Pseudogap in high-temperature superconductors [PDF]
Physics-Uspekhi, 2001 This review describes the main experimental facts and a number of theoretical models concerning the pseudogap state in high - temperature superconductors. On the phase diagram of HTSC - cuprates the pseudogap state is observed in the region of current carrier concentrations less than optimal and leads to a number of anomalies of electronic properties ...
openaire +2 more sources
Beyond Kagome: p$p$‐Bands in Kagome Metals
Advanced Quantum Technologies, Volume 8, Issue 11, November 2025.Recent studies on quantum materials where transition‐metal atoms give rise to d$d$‐bands typical of kagome metals are reviewed. Using examples from several material families – AV3Sb5${\rm AV}_3{\rm Sb}_5$, FeGe, RV6Sn6${\rm RV}_6{\rm Sn}_6$, and LaRu3Si2${\rm LaRu}_3{\rm Si}_2$ – it is argued that p$p$‐bands contributed by elements beyond the kagome ...
Alexander A. Tsirlin, Ece Uykur
wiley +1 more source
Physical Review Research, 2021 In order to study the possible superconductivity at the polar surfaces of 1111-type iron-based superconductors, which is doped with a large amount of holes in spite of the electron doping in bulk materials, we have performed angle-resolved photoemission ...
K. Hagiwara +14 more
doaj +1 more source
Theory of the pseudogap state of the cuprates [PDF]
Physical Review B, 2006 41 pages, 8 ...
openaire +2 more sources
Phase competition in trisected superconducting dome
, 2012 A detailed phenomenology of low energy excitations is a crucial starting point for microscopic understanding of complex materials such as the cuprate high temperature superconductors.
Devereaux, T. P. +18 more
core +2 more sources