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(a)-(c) Surface topography of the LMO buffer layers with the thickness of 1 nm (a), 3 nm (b), and 15 nm (c). (d) The surface topography of the LBMO(20 nm)/LMO(3 nm) film. The scale of the image is 1 × 1 μm2.
Photocurrent as a function of LMO layer thickness for the LBMO/LMO(t)/STON (a) and LMO(t)/STON (b) junctions. The solid line in (a) is theoretical result and the solid line in (b) is a guide for the eye.
(a) Reciprocal square capacitance as a function of bias voltage for the LBMO/LMO(t)/STON junctions with different LMO buffer layers and (b) built-in potential as a function of LMO layer thickness. Solid lines are guide for the eye.
Photocurrent as a function of temperature (a) or the LMO thickness for the LBMO/LMO(t)/STON junctions (b). Solid lines are guide for the eye.
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