Results 41 to 50 of about 9,235 (228)

Relation between Tc and hole concentration in superconducting cuprates [PDF]

open access: yes, 1991
The superconducting transition temperature, Tc, of several series of cuprates shows a nonlinear dependence on the hole concentration, nh, determined by chemical titrations. The tc becomes maximum when nh is in the 0.12-0.15 range in cuprates containing a
Gopalakrishnan, J   +7 more
core   +1 more source

Gap and pseudogap evolution in underdoped cuprates [PDF]

open access: yes, 2000
We describe the spectral properties of underdoped cuprates as resulting from a momentum-dependent pseudogap in the normal-state spectrum. Such a model accounts, within a BCS approach, for the doping dependence of the critical temperature and of the ...
CAPRARA, SERGIO, L. Benfatto
core   +1 more source

Skyrmions in lightly doped cuprates? [PDF]

open access: yes, 2020
We study the stability of skyrmions in anisotropic layered magnets and consider a possible creation of the skyrmions in lightly doped layered cuprates. The picture of thermally excited and induced by the doped quasi-localized holes skyrmions is used to ...
Kochelaev B., Waldner F.
core  

Magnetic field reveals vanishing Hall response in the normal state of stripe-ordered cuprates

open access: yesNature Communications, 2021
The Hall effect has been used as a probe of the normal state of cuprates, when superconductivity is supressed by a magnetic field. Here, the authors report the vanishing of the Hall coefficient at high magnetic field in cuprates with stripe order and ...
Zhenzhong Shi   +5 more
doaj   +1 more source

The composite operator method route to the 2D Hubbard model and the cuprates

open access: yesCondensed 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

Dzyaloshinskii–Moriya Coupling in 3d Insulators

open access: yesCondensed Matter, 2019
We present an overview of the microscopic theory of the Dzyaloshinskii−Moriya (DM) coupling in strongly correlated 3d compounds. Most attention in the paper centers around the derivation of the Dzyaloshinskii vector, its value, orientation, and ...
Alexander Moskvin
doaj   +1 more source

Particle-hole asymmetry in the dynamical spin and charge responses of corner-shared 1D cuprates

open access: yesCommunications Physics, 2021
The underlying mechanism of the superconductivity in high-Tc cuprates and the role spin and charge excitations play has been under debate since the cuprates were first discovered.
Shaozhi Li   +3 more
doaj   +1 more source

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

open access: yesAdvanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi   +11 more
wiley   +1 more source

Mechanism for high-temperature superconductivity in cuprates [PDF]

open access: yes, 1991
A treatment of the Coulomb interaction in cuprates by a time-dependent multiple-scattering theory leads to coherently excited holes in the "antibonding" band with the appearance of a pairing interaction between the (coherently excited) holes.
Lal, R., Joshi, S. K.
core   +1 more source

Limitation of solid-reaction technique in a controlled experiment: Characterization of polycrystalline LaCe0·9Th0.1CuOy compound

open access: yesKuwait Journal of Science, 2023
Solid-state reactions are the most prominent method to synthesize compounds in physics, chemistry, and material science because of their simplicity to scale up or down.
Moses Eterigho Emetere
doaj   +1 more source

Home - About - Disclaimer - Privacy