Fig. 2: Spin-dependent EL. | Nature Communications

Fig. 2: Spin-dependent EL.

From: Electrical switching of spin-polarized light-emitting diodes based on a 2D CrI3/hBN/WSe2 heterostructure

Fig. 2

a The spin dependence in EL signals originated from the spin-polarized carrier injection through CrI3/hBN and the coupled spin and valley indexes in monolayer transition metal dichalcogenide (TMD). b Polarization-resolved EL spectra under ±1.8 T out-of-plane magnetic fields, showing opposite helicity. c The reflective magnetic circular dichroism (RMCD) signals as a function of magnetic fields for a bilayer CrI3/hBN/WSe2 device. The spin switching for each layer is sketched. The red and blue arrows indicate the spin-up and spin-down directions. The up and down indicates the magnetic field sweeping directions. d The corresponding extracted EL helicity as a function when sweeping the magnetic field. e The RMCD signals and f corresponding EL helicity of a trilayer CrI3/hBN/WSe2 device as a function of magnetic fields.

Back to article page