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Paschen-Back effect

[pah-shuh n-bahk] /ˈpɑ ʃənˈbɑk/
noun, Physics.
1.
a splitting of spectral lines observed when the source of a radiation is subjected to a strong magnetic field, caused when the vectors associated with the spin and orbital angular momentum exhibit individual rather than common precession.
Compare Zeeman effect.
Origin
1920-1925
1920-25; named after Friedrich Paschen (1865-1947) and Ernst Back (1881-1959), German physicists
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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