Abstract
The resonances of a resonant tunneling structure are probed by a magnetic field applied parallel to the interfaces, which enables us to investigate the local band structure in k space. By rotating the magnetic field in the plane of the interfaces, the energy surface at constant is investigated. Using this technique we have studied differently strained Si/ quantum wells; we see a large anisotropy of the energy levels, with the symmetry axes of light holes and heavy holes being rotated 45° with respect to each other.
- Received 24 June 1991
DOI:https://doi.org/10.1103/PhysRevLett.67.3828
©1991 American Physical Society