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Physics, 25.06.2019 01:20 jesus3426

Ascanning tunneling microscope is used to measure small changes in height of a surface by detecting changes in the tunneling current between the tip and the surface. the current is proportional to the tunneling coefficient (ie. i = const * t) which follows the general equation for tunneling through a square well , with c dependent on the molecule and l is the distance. the transmission coefficient at one point is t = 0.01, what is the relative current if the distance is increased from l to 5l? we are interested in i(5l)/i(l). (note: there may be more information provided than you need to solve the problem.)

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