2017.02.09
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.
