when used in spectroscopy, energy is plotted in units of inverse millimeters.
Visscher derived an analytical model for the one and two dimensional cases for it, and the amount of energy transferred when it occurs is known as Lipkin's sum rule. A classical description of this effect was found by Shapiro. It was originally discovered using osmium and iridium, though it is most commonly observed in the 57-isotope of a transition metal. It was used to measure (*) gravitational redshift in the Pound-Rebka experiment, and when used in spectroscopy, energy is plotted in units of inverse millimeters. The result of this effect had originally been thought impossible due to conservation of momentum, since the photons involved have very high amounts of energy. For 10 points, name this effect in which gamma ray photons are emitted and absorbed by a crystal lattice with negligible recoil.
Visscher derived an analytical model for the one and two dimensional cases for it, and the amount of energy transferred when it occurs is known as Lipkin's sum rule.
{Mossbauer} Effect