9 papers
Transitions and Critical Divergences in Periodically Hopping Modulated Su-Schrieffer-Heeger Chains
Surajit Mandal, Satyaki Kar
We use a curvature renormalization group (CRG) approach to study the topological phase transitions in a Su-Schrieffer-Heeger chain and its extensions coming from periodic hopping m…
Interplay of Anisotropy, Dzyaloshinskii Moriya Interaction and Symmetry breaking Fields in a 2D XY Ferromagnet
Rajdip Banerjee, Satyaki Kar
A two dimensional classical ferromagnetic XY model with its bound vortex-antivortex dominated quasi long range ordered phase at low temperatures is a long standing as well as well…
Electrical and Thermal conductance through a Nodal Surface Semimetal-Insulator-Superconductor junction
Bhaskar Pandit, Debabrata Sinha, Satyaki Kar
Motivated by the unique dispersions close to the two dimensional band crossing in a topologically charged nodal surface semimetal (NSSM) spectrum, we perform theoretical analysis o…
Topology and Localizations in a 2D Su-Schrieffer-Heeger Model with Domain Walls, Quasi-periodic Disorder and Periodic Hopping Modulations
Surajit Mandal, Satyaki Kar
We study a two dimensional (2D) Su-Schrieffer-Heeger (SSH) model on a square lattice in presence of domain walls (DW) / vortices or quasi-periodic disorders to investigate the natu…
Transport through Nodal Surface Semimetal-Superconductor junction in absence/presence of light irradiation
Bhaskar Pandit, Satyaki Kar
We study quantum tunnelling via s-wave superconductor (SC) junction with a topologically charged nodal surface semimetal (NSSM) where a nonsymmorphic symmetry forces the nodal surf…
Reviewing Current-Driven Dynamics and Monte Carlo based Analysis of Thermodynamic Properties of a Magnetic Skyrmion Crystal
Rajdip Banerjee, Satyaki Kar
Magnetic skyrmions with its topologically protected, nano-sized spin textures have already earned immense fame as information carriers due to their stability and low-current mobili…