Fig. 3 | Nature Communications

Fig. 3

From: Light-driven molecular switch for reconfigurable spin filters

Fig. 3

MR measurements with PEDOT/PSS top electrodes. a Schematics of the Ni(50 nm)-Al2O3(3 nm)-OCAs(2–3 nm)-PEDOT/PSS(600 nm) cross-bar tunnel junction device. Blue helices represents the OCAs (the actual molecular orientation might be disordered). b Top-view optical microscope image for the cross-bar device. c MR curves for the devices fabricated with M-cis isomer after various times of irradiation with visible light. d MR versus irradiation time for devices fabricated with M-cis isomer. Solid line denotes exponential fit. e MR curves for devices with P-trans isomer before and after thermal treatment at 80 °C for 12 h. f MR curves for devices fabricated with M-trans isomer after various times of irradiation with visible light. g MR versus irradiation time for devices fabricated with M-trans isomer. Solid line denotes exponential fit. h MR curves for devices with P-cis isomer before and after thermal treatment at 80 °C for 12 h. To evaluate the correlation between SP and chirality inversion correctly, a freshly fabricated new device was used in the experiment for the M-trans isomer (f, g, and h). Changes in MR curves during the molecular rotation of OCA in the same sample are shown in Supplementary Fig. 5

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