43 citations · 208 across the 17 of their papers we have counts for
17 papers
Engineering topological phases of any winding and Chern numbers in extended Su-Schrieffer-Heeger models
Rakesh Kumar Malakar, Asim Kumar Ghosh
Simple route of engineering topological phases for any desired value of winding and Chern numbers is found in the Su-Schrieffer-Heeger (SSH) model by adding a further neighbor hopp…
Magnetic field induced topological nodal-lines in triplet excitations of frustrated antiferromagnet CaVO
Moumita Deb, Asim Kumar Ghosh
Magnetic field induced multiple non-Dirac nodal-lines are found to emerge in the triplet dispersion bands of a frustrated spin-1/2 antiferromagnetic model on the CaVO lattice. Plaq…
Topological magnons in ferromagnetic Kitaev-Heisenberg model on CaVO lattice
Moumita Deb, Asim Kumar Ghosh
A number of topological phases are found to emerge in the ferromagnetic Kitaev-Heisenberg model on CaVO lattice in the presence of Dzyaloshinskii-Moriya interaction. Heisenberg and…
First and Second Order Topological Phases on Ferromagnetic Breathing Kagome Lattice
Arghya Sil, Asim Kumar Ghosh
In this work, topological properties of a ferromagnetic Heisenberg model on a breathing kagome lattice are investigated extensively in the presence of Dzyaloshinskii-Moriya interac…
Tunable wavevector filtering in borophane based normal metal-barrier-normal metal junctions
Prasun Das, Sangita De Sarkar, Asim Kumar Ghosh
We study the transport properties of Dirac electrons across a two-dimensional normal metal-barrier-normal metal (NBN) interfaces in monolayer borophane. We analyse the transmission…
Antikink dispersions of the - sawtooth spin-1/2 anisotropic Heisenberg antiferromagnetic chain
Susobhan Paul, Asim Kumar Ghosh
Antikink dispersion of the asymmetric - sawtooth spin-1/2 anisotropic Heisenberg antiferromagnetic chain has been derived. Value of spin-gap is obtained by estimating the…