Abstract
A spin-polarized vertical-cavity surface-emitting laser is demonstrated with electrical spin injection from an Schottky tunnel barrier. Laser operation with a spin-polarized current results in a maximum threshold current reduction of 11% and degree of circular polarization of 23% at 50 K. A cavity spin polarization of 16.8% is estimated from spin-dependent rate equation analysis of the observed threshold reduction.
- Received 26 September 2006
DOI:https://doi.org/10.1103/PhysRevLett.98.146603
©2007 American Physical Society