113 citations · 317 across the 12 of their papers we have counts for
9 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…
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…
High Field (14Tesla) Magneto Transport of Sm/PrFeAsO
R. S. Meena, Shiva Kumar Singh, Anand Pal +6
We report high field magneto transport of Sm/PrFeAsO. Below spin density wave transition (TSDW), the magneto-resistance (MR) of Sm/PrFeAsO is positive and increasing with decreasin…
Superconductivity in the vicinity of ferromagnetism in oxygen free perovskite MgCNi3: An experimental and DFT (Density Functional Theory) study
Anuj Kumar, Rajveer Jha, Shiva Kumar +4
We report synthesis, structural, magnetic, specific heat and Density Functional Theory (DFT) studies on MgCNi3 superconductor. Polycrystalline MgCNi3 samples are synthesized throug…
Structural and Magnetic Properties of Co1-xFexSr2YCu2O7 compounds
Shiva Kumar Singh, Praveen Kumar, M. Husain +2
Here we study the structural and magnetic properties of the CoFeSr2YCu2O7 compound with x = 0.0 to 1.0. X-ray diffraction patterns and simulated data obtained from Rietveld refinem…