![]() ![]() ![]() All samples for STM must be at least somewhat electrically conductive. Atomic-scale topographic resolution is achievable. The current flow between the tip and the sample (due to quantum tunneling) strongly depends on the tip-surface gap this relationship can be used to generate a surface topography map. In Scanning Tunneling Microscopy (STM), an electrically-biased tip is scanned very close to a surface (about an atomic diameter away). Transmission and Scanning Transmission Electron Microscopy (TEM/STEM). ![]()
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