22 citations · 84 across the 7 of their papers we have counts for
10 papers
Nonlinear dynamics of topological Dirac fermions in 2D spin-orbit coupled materials
Rajesh K. Malla, Wilton J. M. Kort-Kamp
The graphene family materials are two-dimensional staggered monolayers with a gapped energy band structure due to intrinsic spin-orbit coupling. The mass gaps in these materials ca…
Nonadiabatic transitions in Landau-Zener grids: integrability and semiclassical theory
Rajesh K. Malla, Vladimir Y. Chernyak, Nikolai A. Sinitsyn
We demonstrate that the general model of a linearly time-dependent crossing of two energy bands is integrable. Namely, the Hamiltonian of this model has a quadratically time-depend…
High Landau levels of 2D electrons near the topological transition caused by interplay of spin-orbit and Zeeman energy shifts
Rajesh K. Malla, M. E. Raikh
In the presence of spin-orbit coupling two branches of the energy spectrum of 2D electrons get shifted in the momentum space. Application of in-plane magnetic field causes the spli…
Interaction-induced long-time tail of a nonlinear ac absorption in a localized system: a relay-race mechanism
Rajesh K. Malla, M. E. Raikh
In conventional solid-state electron systems with localized states the ac absorption is linear since the inelastic widths of the energy levels exceeds the drive amplitude. The situ…
Shape of the zeroth Landau level in graphene with non-diagonal disorder
Rajesh K. Malla, M. E. Raikh
Non-diagonal (bond) disorder in graphene broadens Landau levels (LLs) in the same way as random potential. The exception is the zeroth LL, , which is robust to the bond disord…
Effective tunnel conductance and effective ac conductivity of randomly strained graphene
Rajesh K. Malla, M. E. Raikh
We consider a single-layer graphene with high ripples, so that the pseudo-magnetic fields due to these ripples are strong. If the magnetic length corresponding to a typical pseudo-…