3 papers
cond-mat.mes-hall2026
Spin-1 Dirac dispersion and Chern insulating phases in 2D honeycomb Sierpiński fractal
Shneha Biswas, Shouya Yoshida, Katsunori Wakabayashi +1
Graphene-based Sierpiński fractals host a zero-energy chiral mode and spin-1 Dirac dispersions within the nearest-neighbor tight-binding model. However, the presence of complex nex…
cond-mat.mes-hall2025
Multi Moire Networks in Engineered Lateral Hetero-Bilayers: Programmable Phononic Reconfiguration and Second Harmonic Generation
Suman Kumar Chakraborty, Frederico B. Sousa, Chakradhar Sahoo +14
Moire engineering in two-dimensional transition metal dichalcogenides enables access to correlated quantum phenomena. Realizing such effects demands simultaneous control over twist…
cond-mat.mtrl-sci2024
Excitonic circular dichroism in boron-nitrogen clusters decorated graphene
Shneha Biswas, Souren Adhikary, Sudipta Dutta
Within the first principle calculations, we propose a boron and nitrogen cluster incorporated graphene system for efficient valley polarization. The broken spatial inversion symmet…