Paschen-Back effect

[pah-shuh n-bahk]

noun Physics.

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 of Paschen-Back effect

1920–25; named after Friedrich Paschen (1865–1947) and Ernst Back (1881–1959), German physicists Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019