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慕容青草_文学城博客

慕容青草_文学城博客
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free-electron model of metals | physics

free-electron model of metals, in solid-state physics, representation of a metallic solid as a container filled with a gas composed of free electrons (i.e., those responsible for high electrical and thermal conductivity). The free electrons, considered identical to the outermost, or valence, electrons of free metal atoms, are presumed to be moving independently of one another throughout the entire crystal. The free-electron model was first proposed by the Dutch physicist Hendrik A. Lorentz shortly after 1900 and was refined in 1928 by Arnold Sommerfeld of Germany. Sommerfeld introduced quantum-mechanical concepts, most notably the Pauli exclusion principle. Although the model provided

Wolfgang Pauli (person) by Laz - Everything2 com

Wolfgang Ernst Pauli April 25th, 1900 - December 15th, 1958 Nobel Prize in Physics|Nobel Prize winning Physicist First suggested what is now known as th.

A spacetime interval

Albert Einstein is dead. Bohemia, too, no longer exists. They have ascended to the realm of myths and legends, become words to conjure with yet they are not, in general, invoked together.

Meghnad Saha: Physicist and nationalist

Meghnad Saha: Physicist and nationalist
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