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Superconductivity in CeO_{1-x}F_xFeAs with upper critical field of 94 T
J. Prakash, S. J. Singh, S. Patnaik +1
We have successfully synthesized Ce based oxypnictide with fluorine doping (CeO_{1-x}F_xFeAs) by a two step solid state reaction method. Detailed XRD and EDX confirm the crystal st…
Superconductivity at 11.3 K induced by cobalt doping in CeOFeAs
J. Prakash, S. J. Singh, S. Patnaik +1
Pure phases of a new oxyarsenide superconductor of the nominal composition CeOFe0.9Co0.1As was successfully synthesized by solid state reaction in sealed silica ampoules at 1180 C.…
Magnetic field dependence of vortex activation energy: a comparison between MgB2, NbSe2 and Bi2Sr2Ca2Cu3O10 superconductors
S. D. Kaushik, V. Braccini, S. Patnaik
The dissipative mechanism at low current density is compared in three different classes of superconductors. This is achieved by measurement of resistance as a function of temperatu…
Substantial magneto-electric coupling near room temperature in Bi2Fe4O9
A. K. Singh, S. D. Kaushik, Brijesh Kumar +4
We report remarkable multiferroic effects in polycrystalline Bi2Fe4O9. High-resolution X-ray diffraction shows that this compound has orthorhombic structure. Magnetic measurements…