high critical temperature superconductors
A comparative study of enhancements of critical temperature in Bi-Pb-Sr-Ca-Cu-O superconductors
... Figure 3 provides normalized resistance versus temperature of the BPSCCO samples. All of the BPSCCO samples exhibit a metallic behavior at high temperature region with a metal-superconductor ...
8
Critical Temperature in Bulk Ultrafine Grained Superconductors of Nb, V, and Ta Processed by High Pressure Torsion
... bulk superconductors, bulk nanostructured superconductors generated by SPD provide a new route to control superconducting property, because ultrafine-grain structures with a high density of grain ...
10
Possible strain scaling relation for YBCO superconductors?
... ceramic high temperature superconductor (HTS) which already became superconductive at temperatures round the boiling point of nitrogen, ...These superconductors are better applicable for daily ...
43
A Method for Analyzing Physical Processes at the Vortex Front in High-Temperature Superconductors
... (local critical parameters of monodomains, crystallites, and subcrystallites, as well as interdomain, intercrystallite, and intersubrystallite weak links; the energy of interdomain, intercrystallite, and ...
13
Computational modelling of the vortex state in high temperature superconductors
... in high purity single crystals used in fundamental studies of vortex dynamics; we investigate regimes with a high density of vortices with long-range logarithmic vortex-vortex interaction potentials as in ...
162
Pressure Effect on Superconducting Critical Temperature According to String Model
... In 1957 Bardeen, Cooper, and Schrieffer (BCS) proposed a microscopic theory. This marked the firstendeavors in the theoretical understanding of the nature of Sc. The present day theoretical state owes much to this ...
5
Critical Current of Low Angle Grain Boundaries in High Tc Superconductors
... High-temperature superconducting (HTS) materials produced on the base of ‘cuprate’ compounds (RE)-Ba-Cu-O (RE – is the rare-earth element: Y, Gd, Nd) are of great practical interest for electrical ...
5
Freezing of the flux liquid in high temperature superconductors
... the critical current. It would seem th a t to have as large a critical current as possible requires th a t th e m aterial used be able to effectively pin the flux ...
116
A Theoretical study of Van Hove Non-Fermi Superconductors and Analysis of Critical Temperature Degradation
... High temperature copper oxide superconductors are materials with a normal state that cannot be described by Fermi liquid theory. 1 These are strong correlated electron materials. In one dimension, ...
6
Theory of Electron Density of States of High Temperature Impurity Induced Anharmonic Superconductors
... Case-1 At the temperature very close to critical tem- perature, most of the electrons in superconducting state are paired. The collection of pairons (cooper pair, bi- polarons) constitutes the condense or ...
6
STUDY OF DE-GENNES FACTOR AND EFFECT OF EXTERNAL MAGNETIC FIELD ON SC AND AFM IN BOROCARBIDE SUPERCONDUCTORS
... behavior, depending on the rare earth element and coexistence of magnetism and superconductivity in these materials in a wide range of temperatures. However inspite of several publications some fundamental issues as to ...
6
The critical role of the Arabidopsis circadian clock at high temperature
... the discovery of the first circadian properties. Unveiling year after year the central role that the circadian clock has in controlling several physiological traits, scientists often imagined this complex mechanism, ...
186
Fluctuation conductivity and Ginzburg-Landau parameters in high-temperature superconductors above Tc: Effect of strong inelastic scattering
... 5 we have plotted the enhancement factor of the Azlamasov-Larkin contribution due to the marginal- Fermi-liquid effects in D =3, 2, 1, and 0 compared to the case of a constant magnetic i[r] ...
5
Superconductivity in the doped topological insulator CuxBi2Se3
... discovered high-temperature superconductivity in the ceramic material Barium-Lanthanum-Copper-Oxide (BaLaCuO), for which they were rewarded the Nobel prize in physics the year ...
101
A Review on Cuprate Based Superconducting Materials Including Characteristics and Applications
... which are able to carry up to ten times greater current and power capacity per cross section than conventional copper cables (see, e.g., [66, 67]). In the first generation (1G) of the HTS wires, the Bi-2212 material was ...
18
The Radioactivity Induced MRF-Fluctuations in High Temperature Superconductors YBa2Cu3O7 and Geo-rock BPY-4
... By using the above mentioned relations, the magneto-potential records at H = 6000G have been employed to compute the various physical parameters such as Hall coefficient, electrical carrier density, electron ...
9
Hydrostatic Compression Effects on Fifth Group Element Superconductors V, Nb, and Ta Subjected to High Pressure Torsion
... for both arc-melting (ARC) and AR materials are also shown in Figs. 9(a) and 9(b), respectively. At first, the AR material exhibits anisotropic transformation of the unit cell structure at around P = 2 GPa, suggesting ...
12
Measuring the Lower Critical Field of Superconductors Using Nitrogen-Vacancy Centers in Diamond Optical Magnetometry
... The experimental setup is based on an Attocube attoAFM/CFM system and includes a confocal micro- scope optimized for N-V fluorescence detection inside a helium cryostat with optical parts in vacuum and the sample placed ...
11
A THEORETICAL EVALUATION OF IN-PLANE CONDUCTIVITY, OPTICAL CONDUCTIVITY OF NORMAL AND SUPERCONDUCTING STATE AND FREQUENCY DEPENDENT SCATTERING RATE OF HIGH TEMPERATURE SUPERCONDUCTORS
... increase with for all temperatures taken. Such behaviour is expected due to quantum criticality of cuprate superconductors. Our theoretically evaluated results are in good agreement with other theoretical ...
22
Ultra-low Temperature Measurements of London Penetration Depth in Iron Selenide Telluride Superconductors
... of two flat inductor based TDO circuits used in our experiments. In the center we have a CERNOX thermometer to monitor the temperature of the circuits. ...
166