107 citations · 198 across the 9 of their papers we have counts for
10 papers
Electronic Structure and Carrier Mobilities of Twisted Graphene Helix
Rajesh Thakur, P. K. Ahluwalia, Ashok Kumar +2
We have investigated the effect of twisting on electronic band structure, effective mass and carrier mobilities of three prototypes of AGNRs (N=6, 7 & 8) using Density functional t…
Twisted Helical shaped Graphene Nano-Ribbons: Role of Symmetries and Passivation
Rajesh Thakur, P. K. Ahluwalia, Ashok Kumar +2
The Hydrogen and Fluorine planar armchairs graphene nanoribbons (H and F AGNRs), subjected to twist deformation within fixed periodic boundary conditions, eventually morph to a hel…
Two Dimensional Allotropes of Arsenene with Wide Range of High and Anisotropic Carrier Mobility
Pooja Jamdagni, Anil Thakur, Ashok Kumar +2
Considering the rapid development of experimental techniques for fabricating 2D materials in recent years, various monolayers are expected to be experimentally realized in the near…
Tunnelling Characteristics of Stone-Wales Defects in Monolayers of Sn and Group-V Elements
Pooja Jamdagni, Ashok Kumar, Anil Thakur +2
Topological defects in ultrathin layers are often formed during synthesis and processing, thereby, strongly influencing their electronic properties . In this paper, we investigate…
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…
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…
Physical property and electronic structure characterization of bulk superconducting Bi3Ni
Jagdish Kumar, Anuj Kumar, Arpita Vajpayee +5
We report the experimental and theoretical study on magnetic nature of Bi3Ni system. The structure is found to be orthorhombic (Pnma) with lattice parameters a = 8.879Å b = 4.0998Å…
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…
Comparative experimental and Density Functional Theory (DFT) study of the physical properties of MgB2 and AlB2
Devina Sharma, Jagdish Kumar, Arpita Vajpayee +3
In present study, we report an inter-comparison of various physical and electronic properties of MgB2 and AlB2. Interestingly, the sign of S(T) is +ve for MgB2 the same is -ve for…
Anomalous Thermoelectric power of over-doped Bi2Sr2CaCu2O8 superconductor
V. P. S. Awana, Jagdish Kumar Bains, G. S. Okram +2
Temperature dependence of thermoelectric power S(T) of three differently processed Bi2Sr2CaCu2O8 (Bi2212) samples, viz. as-processed melt quenched (Bi2212-MQ), 6000C N2-annealed (B…