The far infrared longitudinal spin and density responses of two-dimensional quantum dots are discussed within local spin-density functional theory. The influence of a partial spin polarization, induced by a perpendicular static magnetic field, is taken into account in the coupling of spin and density channels. As an illustrative application, the case of a dot made of 5 electrons in parabolic confinement is discussed.
European Physical Journal D
- Pub Date:
- PACS: 73.20.Dx Electron states in low-dimensional structures;
- 78.20.Bh Theory;
- models and numerical simulation