Electrons are released when the product of Planck's constant and frequency is greater than this value in the photoelectric effect.
This quantity can be measured with Kelvin probe microscopy. The Schottky barrier arises at a junction when this value in a semiconductor matches it value in a metal. The exponential of this quantity, divided by - kT, is proportional to the current density in the Richardson effect. Ionization energy can be considered its (*) single-atom analogue. Electrons are released when the product of Planck's constant and frequency is greater than this value in the photoelectric effect. For 10 points, name this quantity, the energy required to remove an electron from a metal's surface.
This quantity can be measured with Kelvin probe microscopy. The Schottky barrier arises at a junction when this value in a semiconductor matches it value in a metal.
work function