In scanning tunnelling microscope the tunnelling current is proportional to the transmission probability T. Suppose the gap potential energy V is greater than the electron energy E by V-E=4.0 eV. Calculate the ratio of current when the needle is moved from L1=0.20nm to L2=0.35nm from the surface? Please enter your answer with 2 decimals.
In scanning tunnelling microscope the tunnelling current is proportional to the transmission probability T. Suppose the gap potential energy V is greater than the electron energy E by V-E=4.0 eV. Calculate the ratio of current when the needle is moved from L1=0.20nm to L2=0.35nm from the surface? Please enter your answer with 2 decimals.
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Transcribed Image Text:In scanning tunnelling microscope the tunnelling current is proportional to the
transmission probability T. Suppose the gap potential energy V is greater than
the electron energy E by V-E-=4.0 eV. Calculate the ratio of current when the
needle is moved from L1=0.20nm to L2=0.35nm from the surface? Please enter
your answer with 2 decimals.
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