Equation describing tunneling current

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

  1. boks

    Thread Starter Active Member

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


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