H–T phase diagram for the giant magnetic flux jumps in low temperature superconductors and high temperature superconductors

1998 ◽  
Vol 83 (11) ◽  
pp. 7324-7326 ◽  
Author(s):  
V. V. Chabanenko ◽  
A. I. D’yachenko ◽  
A. V. Chabanenko ◽  
H. Szymczak ◽  
S. Piechota ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Low Temperature ◽  
Magnetic Flux ◽  
High Temperature Superconductors ◽  
T Phase ◽  
Flux Jumps

H-T-phase Diagram For The Giant Magnetic Flux Jumps In LTSC And HTSC, The Role Of Remagnetization Process

2005 ◽  
Author(s):  
V.V. Chabanenko ◽  
A.I. D'yachenko ◽  
A.V. Chabanenko ◽  
H. Szymczak ◽  
S. Piechota ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Magnetic Flux ◽  
T Phase ◽  
Flux Jumps

scholarly journals Low temperature X-ray imaging of magnetic flux patterns in high temperature superconductors

2015 ◽  
Vol 117 (17) ◽  
pp. 17D109 ◽  
Author(s):  
Claudia Stahl ◽  
Stephen Ruoß ◽  
Markus Weigand ◽  
Michael Bechtel ◽  
Gisela Schütz ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Magnetic Flux ◽  
High Temperature Superconductors ◽  
X Ray ◽  
X Ray Imaging

scholarly journals Formation of Intermediate Phases and Supersaturated Solid Solution in Al-Cu System during Diffusion

2018 ◽  
Vol 383 ◽  
pp. 31-35 ◽  
Author(s):  
Alexey Rodin ◽  
Nataliya Goreslavets
Keyword(s):  
Phase Diagram ◽  
Solid Solution ◽  
High Temperature ◽  
Chemical Composition ◽  
Low Temperature ◽  
Supersaturated Solid Solution ◽  
Diffusion Processes ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram ◽  
Intermediate Phases

The study of diffusion processes in the aluminum - copper system was carried out at the temperature 350 and 520 °C. Special attention was paid on the chemical composition of the system near Al/Cu interface. It was determined that the intermediate phases in the system, corresponding to the equilibrium phase diagram, were not formed at low temperature. At high temperature the intermediate phases forms starting with Cu - rich phases. In both cases supersaturated solid solution of copper in aluminum could be observed near the interface.

scholarly journals Universal sheet resistance and revised phase diagram of the cuprate high-temperature superconductors

2013 ◽  
Vol 110 (30) ◽  
pp. 12235-12240 ◽  
Author(s):  
N. Barisic ◽  
M. K. Chan ◽  
Y. Li ◽  
G. Yu ◽  
X. Zhao ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Sheet Resistance ◽  
High Temperature Superconductors

Specific features of penetration and trapping of a magnetic flux in film and bulk YBCO high-temperature superconductors

2018 ◽  
Vol 32 (31) ◽  
pp. 1850346
Author(s):  
Kh. R. Rostami
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Magnetic Flux ◽  
External Field ◽  
High Temperature Superconductors ◽  
Interaction Mechanism ◽  
Differential Method ◽  
Bulk Ybco ◽  
The Magnetic Field ◽  
Insight Into

An oscillatory differential method of local diagnostics of superconductors is applied to the analysis of the trapped magnetic flux and the effective demagnetization factor in YBCO samples. Regular steps over certain intervals of the external field are observed on the magnetic-field dependence of these parameters. It is demonstrated that, as the external field increases, crystallites in a sample are decomposed into sub- and nanocrystallites with a size much less than the penetration depth [Formula: see text] of the magnetic field. The first critical thermodynamic magnetic fields of sub- and nanocrystallites are determined. These results allow one to reveal the interaction mechanism between magnetic and crystalline microstructures of superconductors and provide a deeper insight into the physical processes that occur in high-temperature superconductors (HTSCs) in a magnetic field.

Fluorine Substitution in High Temperature Superconductors

1999 ◽  
Vol 13 (09n10) ◽  
pp. 973-978 ◽  
Author(s):  
E. Bellingeri ◽  
G. Grasso ◽  
R. Gladyshevskii ◽  
E. Giannini ◽  
F. Marti ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Critical Temperature ◽  
Low Temperature ◽  
High Temperature Superconductors ◽  
Irreversibility Field ◽  
Fluorine Substitution ◽  
Superconducting Phases

Fluorine substitution in the Bi(2223), Bi(2212) and Tl(1223) superconducting phases was studied. We obtained superconducting structures, never observed before, of the Bi-based superconductors by a low temperature (200-400 °C) fluorination process. Fluorine substitutes completely the oxygen sites in the Bi layers and additional F atoms are inserted in the structure. As a consequence, changes in the arrangements of cation and anions were induced, especially in the Bi and partially in the Sr layer. F-doped Tl(1223) has been prepared in the same way as Bi(2223) and Bi(2212) (low temperature fluorination), but also starting from precursor containing fluorides of different elements. No significant differences in the crystal structure have been observed between the Tl-based samples with F inclusions and without. The critical temperature (116 K) remains unchanged but a significant increase of the irreversibility field at low temperature was found.

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