Optical Spin Orientation
a bipolar current source with a conversion factor of 15.1 A/T. The magnetic fields in a range of -6 … +6 Tesla can be achieved. To create an additional magnetic fields, perpendicular to the optical axis [...] the lambda point, where helium becomes superfluid. It is possible to attain temperatures down to 1.6 K. The superconductive magnet within the cryostat is oriented in a Voight (Faraday) geometry and connected [...] QDs, the main source of electron spin decoherence is its interaction with a large number (10 4 –10 6 ) of nuclear spins thus representing a “nuclear spin bath” acting on the electron spin. In many materials …
