Hello - I have a question about the extent to which the Rashba effect can be included in transport computations with ATK (version 2018.6 or higher). While there are various versions of the Rashba effect, I want to understand this effect broadly as the interaction of an electron spin with an electric field applied in a direction perpendicular to the electron momentum. To a degree, such an interaction is certainly represented in ATK. If we expose a device to a perpendicular electric field and allow for non-collinear spins, we'll calculate the impact of the electrically modified device on the spins of the electrons traversing the device. I'd like to find out if ATK includes, in addition, the interaction between the electron spins and the screened perpendicular electric field (which one might describe by a Hamiltonian of the form H_R ~ -\sigma . (p X E/2 m), with sigma as the array of spin matrices, p as the electron momentum, and E as the electric field).

Thanks,

Frank