5 citations · 7 across the 7 of their papers we have counts for
7 papers
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…
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…
Identifying the phases of Kane-Mele Hubbard Hamiltonian in momentum space: A many-body configuration interaction study
Ranadeep Roy, Sasmita Mohakud, Katsunori Wakabayashi +1
We investigate the magnetic and conduction properties of Kane-Mele Hubbard model in quasi one-dimensional honeycomb ribbon systems at half-filling by varying the strength of both s…
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…
Superconductivity in Ca-intercalated bilayer silicene
Jisvin Sam, Sasmita Mohakud, Katsunori Wakabayashi +1
Within first-principles calculations, we explore superconductivity in Ca-intercalated bilayer silicene compound, Si2CaSi2. This arises from the coupling of interlayer flower-like Γ…
Circular dichroism in two-dimensional BCN and BCN in absence of intervalley excitonic coupling
Souren Adhikary, Sudipta Dutta
Two-dimensional (2D) noncentrosymmetric systems offer potential opportunities for exploiting the valley degrees of freedom for advanced information processing, owing to non-zero Be…
Valley-polarization and stable triplet exciton formation in 2D lateral heterostrcuture of hBN-kagome and graphene
Souren Adhikary, Sasmita Mohakud, Sudipta Dutta
Broken spatial inversion symmetry in semiconducting materials with time-reversal pair valleys can exhibit valley polarization. Based on first-principles calculations, here we propo…