a type of electron microscope capable of generating a three-dimensional image showing individual atoms: it consists of a moving electrode that scans an object by means of a line of tunneling electrons that flow between the tip of the electrode and the object
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scanning tunneling microscope. (n.d.). Retrieved October 14th, 2018, from http://www.yourdictionary.com/scanning-tunneling-microscope
scanning tunneling microscope
A microscope that scans the surface of a sample with a beam of electrons, causing a narrow channel of tunneling electrons to flow between the sample and the beam, and producing three-dimensional images of atomic topography and structure.