348 citations · 913 across the 33 of their papers we have counts for
6 papers · 1 filter
Antiferromagnetic Skyrmions and Skyrmion Density Wave in Rashba Hund's Insulator
Arnob Mukherjee, Deepak S. Kathyat, Sanjeev Kumar
We discover magnetic phases hosting highly-elusive and technologically important antiferromagnetic skyrmion quasiparicles in a model for Rashba-coupled Hund's insulator. The result…
Rashba-Zener mechanism for nanoscale skyrmions and topological metals
Deepak S. Kathyat, Arnob Mukherjee, Sanjeev Kumar
We report a microscopic electronic mechanism for nanoscale skyrmion formation and topological metalicity. The mechanism, which relies on combining the classic double-exchange (DE)…
New Microscopic Magnetic Hamiltonian for Exotic Spin Textures in Metals
Deepak S. Kathyat, Arnob Mukherjee, Sanjeev Kumar
We derive a new microscopic spin Hamiltonian for Rashba-coupled double exchange metals. The Hamiltonian consists of anisotropic interactions of the Dzyaloshinskii-Moriya (DM) and K…
Independent measurement of Muon neutrino and anti-neutrino oscillations at the INO-ICAL Experiment
Zubair Ahmad Dar, Daljeet Kaur, Sanjeev Kumar +1
The magnetised Iron Calorimeter detector at the India-based Neutrino Observatory (INO) has a unique feature to identify the neutrinos and antineutrinos on an event by event basis.…
Boson Stars and QCD Boson Stars
Usha Kulshreshtha, Sanjeev Kumar, Daya Shankar Kulshreshtha +1
In this talk, we present a review of our work on boson stars in a theory of a massless complex scalar field in the presence of a gauge field and gravity. A sequence of bifur…
Superconductor-like effects in an AC driven normal Mott-insulating quantum dot array
Sanjeev Kumar, Vikram Tripathi
We study the current response of an AC driven dissipative Mott insulator system, a normal quantum dot array, using an analytical Keldysh field theory approach. Deep in the Mott ins…