Equation describing tunneling current

Discussion in 'General Electronics Chat' started by boks, Feb 27, 2009.

  1. boks

    Thread Starter Active Member

    Oct 10, 2008
    218
    0
    The following equation describes the current between the tip and the sample when studying a surface with an STM (Scanning Tunneling Mircoscopy);

    [​IMG].

    What does phi E, r_0 and d represent in this equation?
     
    Last edited: Feb 27, 2009
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