We report a striking in-plane anisotropy of the spin-flip Raman signals observed for dilute magnetic Cd1-xMnxTe quantum wells containing a two-dimensional electron gas. The effect depends upon electron concentration, which can be varied within a single sample via secondary above-barrier illumination. The experimental results are described in a simple, single-electron picture by a model of the conduction band Hamiltonian that includes contributions from Dresselhaus, Rashba, and Zeeman terms.
- SPIN-ORBIT INTERACTIONS; CONDUCTION SUBBANDS; MAGNETIC-FIELD; ELECTRON-GAS; HETEROSTRUCTURES; PRECESSION; ANISOTROPY; RASHBA; LAYERS; BAND
Rice, C., Wolverson, D., Moskalenko, A., Bending, S. J., Karczewski, G., & Wojtowicz, T. (2013). Inversion asymmetry effects in modulation-doped Cd1-xMnxTe quantum wells. Physical Review B, 87(12), [121304(R)]. https://doi.org/10.1103/PhysRevB.87.121304