113 citations · 317 across the 12 of their papers we have counts for
7 papers · 1 filter
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…
Appearance of superconductivity in new BiS2 based layered LaO0.5F0.5BiS2
V. P. S. Awana, Anuj Kumar, Rajveer Jha +5
We report here synthesis, structural, DC magnetization, and transport studies of new BiS2 based layered LaO0.5F0.5BiS2 superconductor [1]. The sample was synthesized by conventiona…
Bulk Superconductivity in Bismuth-oxy-sulfide Bi4O4S3
Shiva Kumar Singh, Anuj Kumar, Bhasker Gahtori +4
Very recent report [1] on observation of superconductivity in Bi4O4S3 could potentially reignite the search for superconductivity in a broad range of layered sulphides. We report h…
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…
Superconducting Mechanism through direct and redox layer doping in Pnictides
Shiva Kumar Singh, M. Husain, H. Kishan +1
The mechanism of superconductivity in pnictides is discussed through direct doping in superconducting FeAs and also in charge reservoir REO layers. The un-doped SmFeAsO is charge n…
Structure and Charge transfer Mechanism in Y1-xCaxBa2Cu3O7-δ through direct doping
Shiva Kumar Singh, M. Husain, V. P. S. Awana
Here we study the effect of Ca doping on charge transfer mechanism of polycrystalline YBa2Cu3O7-δ compound. The samples of composition Y1-xCaxBa2Cu3O7-δ (x = 0.00, 0.05, 0.10, 0.20…
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…