Fig. 6: Magnetic field effects of CPL by applying σ+ excitation through perovskite surface in 2D-superlattice perovskite film (70 nm) prepared on Co surface. | Nature Communications

Fig. 6: Magnetic field effects of CPL by applying σ+ excitation through perovskite surface in 2D-superlattice perovskite film (70 nm) prepared on Co surface.

From: Spin switchable optical phenomena in Rashba band structures through intersystem crossing in momentum space in solution-processing 2D-superlattice perovskite film

Fig. 6

“a.u.” represent arbitrary units. a Magnetic field at +B changes σ+ CPL to σ− CPL. b Magnetic field at −B still changes σ+ CPL to σ− CPL. c Subtracted spectra (σ+-σ−) to show magnetic field effects: field (regardless +B and −B) always changes σ+ CPL to σ− CPL. d Schematic diagram to illustrate intersystem crossing from excited band to un-excited band within Rashba structures induced by magnetic field through spin flipping.

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