Optical Orientation in Ferromagnet/Semiconductor Hybrids
Korenev, V. L.
Condensed Matter - Mesoscale and Nanoscale Physics
arxiv: Physics::Optics | Condensed Matter::Strongly Correlated Electrons | Condensed Matter::Materials Science | Condensed Matter::Mesoscopic Systems and Quantum Hall Effect | Condensed Matter::Other
The physics of optical pumping of semiconductor electrons in the ferromagnet/semiconductor hybrids is discussed. Optically oriented semiconductor electrons detect the magnetic state of the ferromagnetic film. In turn, the ferromagnetism of the hybrid can be controlled optically with the help of the semiconductor. Spin-spin interactions near the interface ferromagnet/semiconductor play crucial role in the optical readout and the manipulation of ferromagnetism.