31 citations · 59 across the 14 of their papers we have counts for
14 papers
Tunable Magnetic Frustration in the Cu-Ru-based Double Perovskite LaSmCuRuO (x = 0, 1, 2) Oxides
Soumya Ghorai, Samir Rom, Irina Shamova +7
In this study, we investigate structural, magnetic, and electronic properties of the copper-ruthenate based oxide double perovskite LaSmCuRuO (x = 0, 1, 2), synthes…
Field driven Metal-Insulator transition in rhombohedral Bismuth and Arsenic crystals
N. K. Karn, Mukul S. Laad, V. P. S. Awana
The metal to insulator (MIT) transition is accompanied by huge changes in physical responses by the control and tuning of experimental parameters like doping, pressure, chemical co…
Crystal Growth & Physical Property Characterization of Mixed Topological Insulator BiSbTe
Dinesh Kumar, Kapil Kumar, N. K. Karn +3
This article reports the synthesis of a single crystalline mixed topological insulator (TI) BiSbTe and its detailed structural and magneto-transport properties. The single crys…
Magneto transport and first principle study of strong topological insulator gray Arsenic
N. K. Karn, Kapil Kumar, Geet Awana +3
This article reports the synthesis of a single crystalline gray Arsenic (As) via the Bismuth flux method. The X-ray Diffraction (XRD) pattern revealed the single phase of the grown…
Investigation of Angle dependent SdH oscillations in Topological Insulator Bismuth
N. K. Karn, Yogesh Kumar, Geet Awana +1
The current article investigated the band structure in the presence and absence of spin-orbit coupling (SOC), examined the Z2 invariants, and investigated the detailed angle-depend…
Anisotropy in Electronic and Magneto-transport of 2D superconductor NbSe
N. K. Karn, M. M. Sharma, I. Felner +1
This article reports the successful synthesis of single crystalline two-dimensional thin flakes of NbSe. The XRD pattern of the grown crystal ensured its crystallization in a s…
Superconductivity at 9 K in Pb-Bi Alloy
N. K. Karn, Kapil Kumar, Naveen Kumar +4
In the present work, we report the synthesis of Pb-Bi alloy with enhanced Tc of up to 9K, which is higher than that of Pb. The alloy is synthesized via a solid-state reaction route…
Synthesis of possible room temperature superconductor LK-99:PbCu(PO)O
Kapil Kumar, N. K. Karn, V. P. S. Awana
The quest for room-temperature superconductors has been teasing scientists and physicists, since its inception in 1911 itself. Several assertions have already been made about room…
Normal state magneto transport properties of FeSeTe superconductor: The role of topological surface states
N. K. Karn, M. M. Sharma, V. P. S. Awana
Doped Iron Chalcogenide (FeCh) superconductors are extensively studied in the context of topological superconductivity. However, the evidence of topological surface states in elect…
Weak Antilocalization and topological edge states in PdSn
N. K. Karn, M. M. Sharma, V. P. S. Awana
Here we report, the successful synthesis of single crystals of topological semimetal (TSM) candidate, PdSn using the self-grown route. The synthesized crystal is well character…
Band topology and non-trivial surface States in type-II Dirac semi-metal (Ni, Pd)Te2
NK Karn, VPS Awana
The semi-metals having electrons near the Fermi level follow the relativistic equation of motion, and show Dirac or Weyl-type behavior. Their orbital resolved electronic bands anal…
Topology of quadrupolar Berry phase of a Qutrit
Rajeev Singh, Navneet Kumar Karn, Rahul Bhowmick +1
We examine Berry phase pertaining to purely quadrupolar state () of a spin- system. Using the Majorana stellar representation of these states,…
Topological Superconductor AuSn4: A first principle study
N. K. Karn, M. M. Sharma, V. P. S. Awana
Topological semimetals such as Weyl or Dirac semimetals with superconductivity have emerged as a new class of topological materials to realize and study Majorana Fermion. This arti…
Bulk superconductivity and non-trivial band topology analysis of Pb2Pd
M. M. Sharma, N. K. Karn, Poonam Rani +2
A perfect topological superconductor can be realized by the simultaneous existence of bulk superconductivity along with topological non-trivial surface states. In this article, we…