35. Special Relativity
Inertial Reference Frames
35. Special Relativity Inertial Reference Frames
29PRACTICE PROBLEM
In an STM, the tunneling probability is very sensitive to the distance between the probe and the surface. Consider a sodium atom with a work function of Φw= 2.8 eV. The gap from the sodium surface to the STM probe is 0.47 nm. If we can accurately detect an 8.0% current change, determine the smallest height change that this STM can detect.
In an STM, the tunneling probability is very sensitive to the distance between the probe and the surface. Consider a sodium atom with a work function of Φw= 2.8 eV. The gap from the sodium surface to the STM probe is 0.47 nm. If we can accurately detect an 8.0% current change, determine the smallest height change that this STM can detect.