Evolution of the Berry curvature dipole in uniaxially strained bilayer graphene

While in pristine bilayer graphene the Berry curvature dipole (BCD) vanishes, uniaxial strain can give rise to finite BCD. We investigate this by using a tight-binding (TB) approach built on the Slater-Koster parametrization to capture lattice deformation effects often missed by continuum models. We demonstrate that the BCD’s evolution with strain and doping is highly sensitive to the choice in parametrization, particularly when including the longer range interlayer skew hoppings. Additionally, out-of-plane compression enhances the response by broadening the Dirac cones. By comparing TB and continuum calculations, we identify regimes in which substantial deviations between the two approaches arise at larger strain or higher carrier density. Our results provide a realistic microscopic benchmark for the intrinsic band-geometric contribution to nonlinear Hall transport in strained bilayer graphene.