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6.3.3 Scanning Tunneling Microscope (STM)

6.3.3 Scanning Tunneling Microscope (STM). STM modes: (1) constant height, measure the tunneling current; (2) keep the current constant by varying the tip height. It can also be used to measure local DOS. 6.3.4 Double Barrier Tunneling and the Resonant Tunneling Diode. 0. a. a + L. 2a + L.

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6.3.3 Scanning Tunneling Microscope (STM)

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  1. 6.3.3 Scanning Tunneling Microscope (STM) STM modes: (1) constant height, measure the tunneling current; (2) keep the current constant by varying the tip height. It can also be used to measure local DOS.

  2. 6.3.4 Double Barrier Tunneling and the Resonant Tunneling Diode 0 a a + L 2a + L There are 8 unknowns: A, B, C, D, E, F, G and H There are 8 boundary conditions (4 boundary interface): ψ and dψ/dx are continuous across the boundary.

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