Results 51 to 60 of about 71,461 (306)

Hour-glass magnetic excitations induced by nanoscopic phase separation in cobalt oxides La$_{2-x}$Sr$_x$CoO$_4$ [PDF]

open access: yes, 2014
The magnetic excitations in the cuprate superconductors might be essential for an understanding of high-temperature superconductivity. In these cuprate superconductors the magnetic excitation spectrum resembles an hour-glass and certain resonant magnetic
Castellan, J. P.   +12 more
core   +2 more sources

Scale-invariant magnetoresistance in a cuprate superconductor [PDF]

open access: yesScience, 2017
Cranking up the field Cuprate superconductors have many unusual properties even in the “normal” (nonsuperconducting) regions of their phase diagram.
P. Giraldo-Gallo   +20 more
semanticscholar   +1 more source

Calorimetric Research into the Heat Capacity of Novel Nano-Sized Cobalt(Nickelite)-Cuprate-Manganites of LaBaMeIICuMnO6 (MeII = Co, Ni) and their Thermodynamic Properties

open access: yesEurasian Chemico-Technological Journal, 2020
The isobaric heat capacities of novel nano-sized cobalt-cuprate-manganite of lanthanum and barium LaBaCoCuMnO6 and nickel-cuprate-manganite of lanthanum and barium LaBaNiCuMnO6 were investigated by dynamic calorimetry over the temperature range of 298.15‒
B. K. Kassenov   +4 more
doaj   +1 more source

Locally commensurate charge-density wave with three-unit-cell periodicity in YBa2Cu3Oy

open access: yesNature Communications, 2021
Understanding cuprate superconductors requires better knowledge of the microscopic structure of their charge-density waves (CDW). Here, the authors report evidence that the long-range CDW order in YBa2Cu3Oy has a local commensurate period of three unit ...
Igor Vinograd   +9 more
doaj   +1 more source

Commensurate $4a_0$ period Charge Density Modulations throughout the $Bi_2Sr_2CaCu_2O_{8+x}$ Pseudogap Regime

open access: yes, 2016
Theories based upon strong real space (r-space) electron electron interactions have long predicted that unidirectional charge density modulations (CDM) with four unit cell (4$a_0$) periodicity should occur in the hole doped cuprate Mott insulator (MI ...
Davis, J. C. Séamus   +8 more
core   +1 more source

Cuprates—An Overview

open access: yesJournal of Superconductivity and Novel Magnetism, 2012
Lecture at 1st Centennial of Superconductivity, Cali, Columbia, June 29 - July 1 ...
openaire   +2 more sources

Degenerate plaquette physics as key ingredient of high-temperature superconductivity in cuprates

open access: yesnpj Quantum Materials, 2022
We study the physics of high-temperature cuprate superconductors starting from the highly degenerate four-site plaquette of the $$t-t^{\prime} -U$$ t − t ′ − U Hubbard model as a reference system.
Michael Danilov   +5 more
doaj   +1 more source

Oxygen-isotope effect on the in-plane penetration depth in cuprate superconductors

open access: yes, 2004
Muon-spin rotation (muSR) studies of the oxygen isotope (^{16}O/^{18}O) effect (OIE) on the in-plane magnetic field penetration depth lambda_{ab} in cuprate high-temperature superconductors (HTS) are presented.
A Shengelaya   +31 more
core   +1 more source

Reduced Hall carrier density in the overdoped strange metal regime of cuprate superconductors [PDF]

open access: yesNature Physics, 2019
Efforts to understand the microscopic origin of superconductivity in the cuprates are dependent on knowledge of the normal state. The Hall number in the low-temperature, high-field limit nH(0) has a particular importance because, within conventional ...
C. Putzke   +12 more
semanticscholar   +1 more source

Tc and Other Cuprate Properties in Relation to Planar Charges as Measured by NMR

open access: yesCondensed Matter, 2019
Nuclear magnetic resonance (NMR) in cuprate research is a prominent bulk local probe of magnetic properties. NMR also, as was shown over the last years, actually provides a quantitative measure of local charges in the CuO 2 plane.
Michael Jurkutat   +2 more
doaj   +1 more source

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