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In a scanning tunneling microscope, which outcome minimizes image ghosting due to tip-sample orbital interaction?

A)Maximizing wavefunction overlap consistently
B)Maintaining constant tunneling current feedback
C)Increasing the applied bias voltage slowly
D)Using stiffer cantilever materials

💡 Explanation

Maintaining constant tunneling current ensures consistent tip-sample distance via feedback, minimizing wavefunction overlap fluctuations—the core of tunneling current dynamics—which reduce image artifacts because the feedback loop compensates for orbital interactions, rather than allowing them to distort the image.

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