| 单词 | Paschen-Back effect |
| 释义 | Paschen-Back effect /pah"sheuhn bahk"/, 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. Cf. Zeeman effect. [1920-25; named after Friedrich Paschen (1865-1947) and Ernst Back (1881-1959), German physicists] |
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