4 papers
Altermagnetic phases and phase transitions in Lieb- Hubbard model
Sougata Biswas, Achintyaa, Paramita Dutta
The emergence of altermagnetism, the collinear magnetic phase characterized by momentum-dependent spin-split bands but zero net magnetization, has fundamentally reshaped the classi…
Superconducting order parameter in aperiodic binary systems
Sougata Biswas, Debika Debnath, Paramita Dutta
Recent discovery of the superconducting ground state in systems lacking perfect periodicity but with long-range ordering has opened up an exciting new avenue for superconductivity…
Topological phase transition and its stability against an applied magnetic field in a class of low dimensional decorated lattices
Sougata Biswas
The possibility of topological phase transition with or without a magnetic flux trapped in the cells of a class of decorated lattices is explored in details.Using a tight binding H…
Two-strand ladder network variants: localization, multifractality, and quantum dynamics under an Aubry-André-Harper kind of quasiperiodicity
Sougata Biswas
In this paper we demonstrate, using a couple of variants of a two-strand ladder network that, a quasiperiodic Aubry-André-Harper (AAH) modulation applied to the vertical strands, m…