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Physics, 29.06.2019 14:20 leomessifanboy678

The scanning-tunneling microscope works on the principle of electron tunneling. imagine you are trying to optimize your scanning tunneling microscope. your microscope has a gold tip (work function = 5.1 ev) and your electron has a kinetic energy of 4.6 ev (a) if you move the tip to sample distance from 0.3 nm to 0.2nm how does the transmission probability change? (b) you have a “brilliant” idea. what if you use protons instead of electrons? how will the transmission probability change?

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