Results 11 to 20 of about 2,363,196 (290)

Critical current density in advanced superconductors

open access: yesProgress in Materials Science
This review paper delves into the concept of critical current density in high-temperature superconductors (HTS) across macroscopic, mesoscopic, and microscopic perspectives. Through this exploration, a comprehensive range of connections is unveiled aiming to foster advancements in the physics, materials science, and the engineering of applied ...
H.S. Ruiz   +18 more
openaire   +9 more sources

Low-Vacuum Pyrolysis of YBCO Films by Using Fluorine-Free Metal Organic Chemical Deposition

open access: yesCrystals, 2022
The preparation of YBCO superconducting films by using metal organic chemical deposition (MOD) involves low-temperature pyrolysis and high-temperature treatment. The former process generally requires the introduction of water vapor and other gases.
Zhao Yang   +5 more
doaj   +1 more source

Pinning Potential of the Self-Assembled Artificial Pinning Centers in Nanostructured YBa2Cu3O7−x Superconducting Films

open access: yesNanomaterials, 2022
For high-field power applications of high-temperature superconductors, it became obvious in recent years that nano-engineered artificial pinning centers are needed for increasing the critical current and pinning potential.
Ion Ivan   +7 more
doaj   +1 more source

Variation of Pinning Force Density Throughout the TSMG Y123 Superconductor with Location

open access: yesCumhuriyet Science Journal, 2022
Top seeded melt growth (TSMG) Y123 sample with 35 mm diameter was produced by using Nd123 seed and its superconducting parameters such as transition temperature (Tc), critical current density (Jc) and pinning mechanism were locally examined by taking ...
Bakiye Çakır
doaj   +1 more source

Modification of Critical Current Density Anisotropy in High-Tc Superconductors by Using Heavy-Ion Irradiations

open access: yesQuantum Beam Science, 2021
The critical current density Jc, which is a maximum value of zero-resistivity current density, is required to exhibit not only larger value but also lower anisotropy in a magnetic field B for applications of high-Tc superconductors. Heavy-ion irradiation
Tetsuro Sueyoshi
doaj   +1 more source

Upper critical field, lower critical field and critical current density of FeTe0.60Se0.40 single crystal [PDF]

open access: yes, 2009
The transport and magnetic studies are performed on high quality FeTe0.60Se0.40 single crystals to determine the upper critical fields (Hc2), lower critical field (Hc1) and the Critical current density (Jc). The value of upper critical field Hc2 are very
C S Yadav   +11 more
core   +1 more source

Higher critical current density achieved in Bi-2223 High-Tc superconductors

open access: yesJournal of Radiation Research and Applied Sciences, 2016
Bi2Sr2Ca2Cu3Ox (Bi-2223) were prepared using a solid state reaction method at different sintering times and temperatures. Structural phase identifications have been done using X-Ray analysis and refinement by Reitveld method which proves the coexistence ...
M.S. Shalaby   +5 more
doaj   +1 more source

Pair-breaking critical current density of magnesium diboride [PDF]

open access: yesPhysical Review B, 2003
The pair-breaking critical current density j_{d} of magnesium diboride was determined over its entire temperature range by a pulsed dc transport measurement. At fixed low values of current density j, the resistive transition temperature Tc shifts in the classic T_{C}(j)/T_{C}(0) \propto -[j/j_{d}(0)]^{2/3} manner, with a projected j_{d}(0) \approx 2 \
Kunchur, Milind N.   +2 more
openaire   +2 more sources

Effect of Rapidly Annealing Process on MgB2 Superconducting Wires

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
The present study has reported the effect of rapidly annealing and cooling process on the transport and morphological properties of Fe/MgB2 wires. Transport properties like critical transition temperature, transition width and engineering critical ...
Fırat Karaboğa
doaj   +1 more source

Defect-induced weak collective pinning in superconducting YB6 crystals

open access: yesJPhys Materials, 2023
In a previous study (2017 Phys. Rev. B 96 144501), a strong variation in the superconducting transition temperature T _c of YB _6 differing by a factor of two has been explained by a change in the density of yttrium and boron vacancies tuning the ...
Zuzana Pribulová   +13 more
doaj   +1 more source

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