Fig. 4: Comparison of Jahn-Teller effect induced spin polarization between Cs3Cu2I5 and CsCu2I3. | Nature Communications

Fig. 4: Comparison of Jahn-Teller effect induced spin polarization between Cs3Cu2I5 and CsCu2I3.

From: Spin-polarized self-trapped excitons in low-dimensional cesium copper halide

Fig. 4

a The lattice arrangement of Cs3Cu2I5 shows a 0D confinement structure of the Cu-I structure components, and that of CsCu2I3 exhibits a 1D structure. J-T distortion induced STE PL spectra at T = 80-300 K for b Cs3Cu2I5 and c CsCu2I3, respectively. d The fit of T-dependent FWHM of Cs3Cu2I5 and CsCu2I3. ePPL versus B at different T for CsCu2I3. f Comparison of S, gex, and maximal PPL of Cs3Cu2I5 and CsCu2I3, respectively (PPL and gex are obtained at T = 80 K).

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