Institute of Innovative Research, 
Tokyo Institute of Technology.


Press Release

Surprising spin behavior at room temperature

Surprising spin behavior at room temperature: circularly polarized room-temperature electroluminescence from spin-polarized light-emitting diodes

Scientists at Tokyo Institute of Technology have observed almost purely circularly polarized electroluminescence from GaAs-based spin-polarized light-emitting diodes at room temperature, with no external magnetic field. This behavior indicates the presence of spin-dependent nonlinear processes, which may allow the development of semiconductor-based spin-photonic devices in the future.