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. 2015 Sep 8;5:13753. doi: 10.1038/srep13753

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Calculated electrical fields across the Schottky contact E_S, the Nb_yO_x layer E_I (b), and across the tunnelling barrier E_T (b) during a positive voltage sweep. The onset current of the Schottky diode for the LRS and HRS are marked in red and blue, respectively. The black arrows show the direction of the voltage sweep. Inset: Corresponding change in effective tunneling distance.