Electrical initialization and manipulation of electron spins in an L-shaped strained n-InGaAs channel -: art. no. 022503

An L-shaped strained n-InGaAs channel is used to polarize and subsequently rotate electron spins solely by means of electric fields. Precession of electrically excited spins in the absence of applied magnetic fields is directly observed by Kerr rotation microscopy. In addition, in-plane and out-of-plane components of the spin polarization in the channel are simultaneously imaged. (c) 2005 American Institute of Physics.