4 papers
Symmetries in zero and finite center-of-mass momenta excitons
Robin Bajaj, Namana Venkatareddy, H. R. Krishnamurthy +1
We present a symmetry-based framework for the analysis of excitonic states, incorporating both time-reversal and space-group symmetries. We demonstrate the use of time-reversal and…
Atomic relaxation and flat bands in strain-engineered transition metal dichalcogenide bilayer moiré systems
Sudipta Kundu, Indrajit Maity, Robin Bajaj +2
Strain-induced lattice mismatch leads to moiré patterns in homobilayer transition metal dichalcogenides (TMDs). We investigate the structural and electronic properties of such str…
Enhanced Phonon-Assisted Tunneling in Metal -- Twisted Bilayer Graphene Junctions
Radhika Soni, Suvronil Datta, Robin Bajaj +7
We report planar tunneling spectroscopy measurements on metal-WSe-twisted bilayer graphene heterostructures across a broad range of gate and bias voltages. The observed experim…
Probing Phonon Modes in Reconstructed twisted Homo and Hetero Bilayer System
Sushil Kumar Sahu, Robin Bajaj, Syed Ummair Ali +7
Twist angle engineering in van der Waals homo and hetero-bilayers introduces profound modifications in their electronic, optical and mechanical properties due to lattice reconstruc…