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4-ML-thick films grown by PLD on : (a) in situ RHEED oscillation during deposition, (b) in situ RHEED pattern, (c) ex situ AFM topography, and (d) in situ STM image ( and ) after deposition.
Schematic illustration of side view and top view of the sample holder.
curves correspond to (a) 10 ML and (b) 4-ML-thick films. The positive (negative) current jump is seen only when the voltage is ramped in the forward (reverse) direction.
Two loops recorded on (a) a 4-ML-thick film and (b) a 10-ML-thick film on . Current jumps are reproducible and show hysteresis on but are not present on .
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