"These results, including the failure of the data to satisfy the Bragg formula, are in accord with those previously obtained in our experiments on electron diffraction. The reflection data fail to satisfy the Bragg relation for the same reason that the electron diffraction beams fail to coincide with their Laue beam analogues. These differences between the electron and x-ray phenomena can perhaps be accounted for by assuming, as first suggested by Eckart,' that the crystal is characterized by an index of refraction for electrons as it is for x-rays, and that for electrons of the speeds used in our experiments the index has values which are quite different from unity.
The purpose of the Davidson Germer Experiment was to provide evidence for the wave-particle duality of matter, which is a fundamental principle in quantum mechanics.
The scientists involved in the Davidson Germer Experiment were Clinton Davisson and Lester Germer, who were both American physicists working at Bell Labs in the 1920s.
The Davidson Germer Experiment provided experimental evidence for the wave-like behavior of electrons, which was a crucial piece of evidence for the development of the quantum mechanical model of the atom.
The key finding of the Davidson Germer Experiment was that electrons exhibit diffraction patterns when they pass through a crystal, which is a characteristic behavior of waves.
The Davidson Germer Experiment is considered a landmark experiment in physics because it provided direct evidence for the wave-particle duality of matter, which was a major breakthrough in understanding the behavior of particles at the atomic level.