anomalous Zeeman effectnoun now chiefly historical a form of the Zeeman effect in which an even number of lines is produced rather than the expected odd number, theoretically unexplained before the discovery of electron spin in the 1920s.inverse Zeeman effectnoun the splitting of lines in an absorption spectrum in the presence of a magnetic field.
[1897
A theoretical analysis..can be developed in connexion with Zeeman's phenomenon, which may help to throw light on the nature of the electric vibrations in the molecule.
The author does not agree..that the rotation of the plane of the vibrations is the principal cause of the appearance of light in the inverse Zeeman effect.
Anomalous Zeeman-effect of spectral lines of the D-type.
Science Abstracts A. vol. 16 591 (title)
1962
Using the Zeeman effect in spectral lines originating at high levels in the sun, he has been able to show that a flare is often accompanied by a drastic simplification of the local field.
Rep. Progress Physicsvol. 25 272
1980
All of these exceptional cases came to be called the anomalous Zeeman effect, although the exceptions soon proved to be much more numerous than the rule.
E. U. Condon & H. Odabaşi, Atomic Struct. i. 14
1994
What we observe in astronomical spectra is mostly absorption lines superposed on continuous spectra, i.e. Fraunhofer lines. They display the so-called inverse Zeeman effect.
Ye Shi-Hui, Magn. Fields Celestial Bodies ii. 16
2009
The spin of the electron was postulated in 1925 in order to explain certain features of the optical spectra of hot gases, particularly gases subjected to a magnetic field (Zeeman effect).
B. D. Cullity & C. D. Graham, Introduction to Magnetic Materials (ed. 2) ii. 88
attributive. Relating to, caused by, or utilizing the Zeeman effect, as Zeeman splitting.
1898
The ‘outer lines’ of the Zeeman triplet show indications of complex structure.
Astrophysical Journalvol. 8 45
1927
Each of the five hyper-fine structure lines has a triplet Zeeman pattern.
Proceedings of National Academy of Sciences U.S.A.vol. 13 431
1962
There are several ways of inferring the existence of magnetic fields, of which the most direct is from a measurement of the Zeeman splitting of spectral lines.
W. B. Thompson, Introduction to Plasma Physics i. 3
1971
When a nucleus is placed in a high magnetic field, each energy level splits into several sublevels known as magnetic sublevels or Zeeman levels.
New Scientist 18 February 381/1
2009
Today, Zeeman lasers are available from two manufacturers.
Some consonants can take the function of the vowel in unstressed syllables. Where necessary, a syllabic marker diacritic is used, hence /ˈpɛtl/ but /ˈpɛtl̩i/.
Vowels
iːfleece
ihappy
ɪkit
ɛdress
atrap, bath
ɑːstart, palm, bath
ɒlot
ɔːthought, force
ʌstrut
ʊfoot
uːgoose
əletter
əːnurse
ɪənear
ɛːsquare
ʊəcure
eɪface
ʌɪpride
aʊmouth
əʊgoat
ɔɪvoice
ãgratin
ɒ̃salon
ᵻ(/ɪ/-/ə/)
ᵿ(/ʊ/-/ə/)
Other symbols
The symbol ˈ at the beginning of a syllable indicates that that syllable is pronounced with primary stress.
The symbol ˌ at the beginning of a syllable indicates that that syllable is pronounced with secondary stress.
Round brackets ( ) in a transcription indicate that the symbol within the brackets is optional.
Some consonants can take the function of the vowel in unstressed syllables. Where necessary, a syllabic marker diacritic is used, hence /ˈpɛd(ə)l/ but /ˈpɛdl̩i/.
Vowels
ifleece, happy
ɪkit
ɛdress
ætrap, bath
ɑlot, palm, cloth, thought
ɑrstart
ɔcloth, thought
ɔrnorth, force
ʊfoot
ugoose
əstrut, comma
ərnurse, letter
ɪ(ə)rnear
ɛ(ə)rsquare
ʊ(ə)rcure
eɪface
aɪpride
aʊmouth
oʊgoat
ɔɪvoice
ɑ̃gratin
æ̃salon
ᵻ(/ɪ/-/ə/)
ᵿ(/ʊ/-/ə/)
Other symbols
The symbol ˈ at the beginning of a syllable indicates that that syllable is pronounced with primary stress.
The symbol ˌ at the beginning of a syllable indicates that that syllable is pronounced with secondary stress.
Round brackets ( ) in a transcription indicate that the symbol within the brackets is optional.
Simple text respell breaks words into syllables, separated by a hyphen. The syllable which carries the primary stress is written in capital letters. This key covers both British and U.S. English Simple Text Respell.
Consonants
b, d, f, h, k, l, m, n, p, r, s, t, v, w and z have their standard English values