Giant increase in critical current density of KxFe2−ySe2single crystals

Giant enhancement in critical current density, up to a hundredfold, in superconducting NaFe0.97Co0.03 As single crystals under hydrostatic pressure

Tremendous efforts towards improvement in the critical current density "Jc" of iron based superconductors (FeSCs), especially at relatively low temperatures and magnetic fields, have been made so far through different methods, resulting in real progress. Jc at high temperatures in high fields still needs to be further improved, however, in order to meet the requirements of practical application...

Relativistic increase of critical electron density

Original quasineutrality of a plasma at rest is heavily perturbed when the electrons are induced to oscillate relativistically by a superintense laser beam. This represents one of the major difficulties when studying the propagation of intense linearly polarized electromagnetic waves in plasmas. Particular attention has to be dedicated to the effective relativistic increase of the critical dens...

High Critical Current Density Superconductivity

This project was focused on a basic scientific problem, one that is at the heart of application and development of superconductivity for efficient energy usage. This is improvement in high current density which can only be achieved by learning to pin vortices to the physical structure of its underlying superconducting material. Quantized vortices are the tornado of electrical supercurrents, ubi...

Low Sr doping effects on critical current density and pinning mechanism of YBa2Cu3O7- single crystals

We report on isotherm dc magnetization hysteresis loops, M(H) to 70K  T  82.5K of YBa2-xSrxCu3O7- (x = 0, 0.02 and 0.1) single crystals with the purpose to study the influence of the low Sr doping effects on the YBa2Cu3O7- critical current density, JC(H) and normalized flux pinning force density, f(h). The M(H) measurements were performed in a commercial SQUID magnetometer with H  50kOe ap...

High Critical Current Density MgB