Is matter wave an electromagnetic wave

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Matter waves

In 1924, De Broglie transferred the wave-particle dualism, which was already accepted for electromagnetic radiation, to all moving particles, especially to electrons. (In the case of electromagnetic radiation, for example light, the wave character is noticeable in diffraction phenomena, the particle character in the photo effect, i.e. the ejection of electrons from metal surfaces during exposure.)

The Einstein equation and Planck's formula result for a photon:

De Broglie postulated that an electron can also be assigned a wavelength if the speed of light is replaced by the speed of the electron:

If you count from this

into Bohr's relationship

one, so one obtains

respectively

This means that if you consider the electron in the atom as a standing wave, the circumference of the orbit must be an integral multiple of the wavelength of the electron. This appears plausible in comparison with classical physical considerations insofar as otherwise the wave would be canceled out by interference:

This wave consideration of the electron is an essential basis of wave mechanics.

An experimental confirmation of De Broglie's work was already a few years later (1927) by Davisson and Germer, who proved that the action of electron beams on single crystals or crystal powder on a film produces diffraction patterns of the same type as those obtained with X-rays is called spots in the Laue and diffraction rings in the Debye-Scherrer method.