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Davisson and Germer in 1927. The Davisson–Germer experiment was a 1923–1927 experiment by Clinton Davisson and Lester Germer at Western Electric (later Bell Labs), [1] [2] [3] in which electrons, scattered by the surface of a crystal of nickel metal, displayed a diffraction pattern.
Clinton Joseph Davisson (October 22, 1881 – February 1, 1958) was an American physicist who won the 1937 Nobel Prize in Physics for his discovery of electron diffraction in the famous Davisson–Germer experiment. Davisson shared the Nobel Prize with George Paget Thomson, who independently discovered electron diffraction at about the same ...
Davisson and Germer published notes of their electron-diffraction experiment result in Nature and in Physical Review in 1927. One month after Davisson and Germer's work appeared, Thompson and Reid published their electron-diffraction work with higher kinetic energy (thousand times higher than the energy used by Davisson and Germer) in the same ...
Lester Halbert Germer (October 10, 1896 – October 3, 1971) was an American physicist. [1] With Clinton Davisson, he proved the wave-particle duality of matter in the Davisson–Germer experiment, which was important to the development of the electron microscope. These studies supported the theoretical work of De Broglie.
Davisson–Germer experiment: Clinton Davisson and Lester Germer: Confirmation De Broglie hypothesis: 1924 Bothe–Geiger coincidence experiment: Walther Bothe and Hans Geiger: Confirmation Compton effect / conservation of energy: 1925 Michelson–Gale–Pearson experiment: Albert A. Michelson and Henry G. Gale: Measurement Earth's rotation ...
This type of experiment was first performed by Thomas Young in 1801, as a demonstration of the wave behavior of visible light. [1] In 1927, Davisson and Germer and, independently, George Paget Thomson and his research student Alexander Reid [2] demonstrated that electrons show the same behavior, which was later extended to atoms and molecules.
In 1927 at Bell Labs, Clinton Davisson and Lester Germer fired slow-moving electrons at a crystalline nickel target. [ 22 ] [ 23 ] The diffracted electron intensity was measured, and was determined to have a similar angular dependence to diffraction patterns predicted by Bragg for x-rays .
He is also noted for his unpublished proposal of the wave-like diffraction of electron particles by a crystal. The subsequent Davisson–Germer experiment showing this effect led to a Nobel Prize in Physics. [2] Between 1962 and 1968 he was a Professor of Geophysics at Princeton University.