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Enhanced superconducting performance of melt quenched Bi2Sr2CaCu2O8 (Bi-2212) superconductor
Jagdish Kumar, Devina Sharma, P. K. Ahluwalia +1
We scrutinize the enhanced superconducting performance of melt quench Bismuth based Bi2Sr2CaCu2O8 (Bi-2212) superconductor. The superconducting properties of melt quenched Bi-2212…
Synthesis and superconductivity of new BiS2 based superconductor PrO0.5F0.5BiS2
Rajveer Jha, Anuj Kumar, Shiva Kumar Singh +1
We report synthesis and superconductivity at 3.7K in PrO0.5F0.5BiS2. The newly discovered material belongs to the layered sulfide based REO0.5F0.5BiS2 compounds having ZrCuSiAs typ…
Superconductivity at 5K in NdO0.5F0.5BiS2
Rajveer Jha, Anuj Kumar, Shiva Kumar Singh +1
We report appearance of superconductivity at 5K in NdO0.5F0.5BiS2 and supplement the discovery [1] of the same in layered sulfide based ZrCuSiAs type compounds. The bulk polycrysta…
Spin dynamics, short-range order and superparamagnetism in superconducting ferromagnet RuSr2Gd1.4Ce0.6Cu2O10-δ
Anuj Kumar, R. P. Tandon, V. P. S. Awana
We report structural, detailed DC and linear/non-linear AC, isothermal and thermoremanent magnetization study of the rutheno-cuprate superconducting ferromagnet RuSr2Gd1.4Ce0.6Cu2O…
Successive spin glass, cluster ferromagnetic, and superparamagnetic transitions in RuSr2Y1.5Ce0.5Cu2O10 complex magneto-superconductor
Anuj Kumar, R. P. Tandon, V. P. S. Awana
We report structural, DC magnetization, detailed linear/non-linear AC susceptibility, (with applied frequency and amplitude) isothermal and thermoremanent magnetization (TRM) behav…
Chalcogen Height Dependence of Magnetism and Fermiology in FeTe_xSe_{1-x}
Jagdish Kumar, S. Auluck, P. K. Ahluwalia +1
FeTexSe1-x (x=0, 0.25, 0.50, 0.75 and 1) system has been studied using density functional theory. Our results show that for FeSe, LDA seems better approximation in terms of magnitu…
High field magneto-transport and magnetization study of Y1-xCaxBa2Cu3O7-δ(x = 0.0-0.25)
N. P. Liyanawaduge, Anuj Kumar, Rajveer Jha +2
We report DC isothermal magnetization, global critical current density (JC), Intra-grain critical current density (JCintra) and resistive upper critical field (Bc2) of polycrystall…
Room temperature magnetic entropy change and magnetoresistance in La_{0.70}(Ca_{0.30-x}Sr_x)MnO_3:Ag 10% (x = 0.0-0.10)
R. Jha, Shiva Kumar Singh, Anuj Kumar +1
The magnetic and magnetocaloric properties of polycrystalline La0.70(Ca0.30-xSrx)MnO3:Ag 10% manganite have been investigated. All the compositions are crystallized in single phase…
Effect of 3d Metal (Co and Ni) Doping on the Superconductivity of FeSe0.5Te0.5
Anuj Kumar, R. P. Tandon, V. P. S. Awana
We report the effect of 3d metal Cobalt (Co) and Nickel (Ni) doping on the FeTe0.5Se0.5 superconductor with the nominal composition range Fe1-xMxTe0.5Se0.5 (M = Co, Ni and x = 0.00…
Vacuum encapsulated synthesis of 11.5 K NbC superconductor
Rajveer Jha, V. P. S. Awana
Bulk polycrystalline NbC samples are synthesized through solid state reaction route in an evacuated sealed quartz tube. Studied NbC samples are crystallized in NaCl-type cubic stru…
Effect of Boron substitution on the superconductivity of non-oxide perovskite MgCNi3
Anuj Kumar, Rajveer Jha, R. P. Tandon +1
We report synthesis, structural and magnetic (DC and AC) properties of Boron substituted MgCNi3 superconductor. A series of polycrystalline bulk samples Mg1.2C1.6-xBxNi3 (x = 0.0,…
Synthesis and superconductivity of CeNi0.8Bi2: New entrant in superconductivity kitchen?
Anuj Kumar, Shiva Kumar, Rajveer Jha +1
CeNi0.8Bi2 is very recent entrant in superconductivity kitchen [1], and the same seeks reproduction from other groups. We report synthesis, structural details and superconductivity…
Magnetization and Magneto-resistance in Y(Ba1-xSrx)2Cu3O7-δ (x = 0.00 - 0.50) superconductor
N. P. Liyanawaduge, Shiva Kumar Singh, Anuj Kumar +3
Here we present the magnetic properties and upper critical field (BC2) of polycrystalline Y(Ba1-xSrx)2Cu3O7-δ superconductors, which are being determined through detailed ac/dc sus…