Abstract

Pulsed magnetic fields of ~270 kG which are repeatable to <1% from pulse to pulse have been used to produce the Zeeman effect in a number of electronic transitions for O II, O III, Si I, Si III, Si IV, Cu II, C I, C III, Ca II, Mg I, Mg II, and B I. The reliability of the method has been checked by comparison of the resulting experimental g values both with theoretical Landé g factors and, when data exist, with earlier Zeeman work performed using conventional field strengths (~25 kG). A total of 109 previously unpublished <i>g</i> values are reported, with the listings for the above, oxygen and silicon species being the more complete. The over-all uncertainty in the reported <i>g</i> values is believed to be in the range 1%–3%. While the magnet has been used above 400 kG in other experiments, assymetries were becoming apparent below 300 kG. Therefore, data for this work was restricted to 270 kG where strong LS coupling was observed to hold with few exceptions (primarily 3<i>d</i> terms of O II). It is believed the method describ d should be of most utility in the determination of atomic transition types from their characteristic Zeeman patterns.

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  1. P. Kapitsa, Proc. Roy. Soc. (London) A167, 1 (1938).
  2. Only a brief outline of the methods and results are given here. A complete discussion, including details of construction of apparatus and the original experimental data, can be found in the thesis of Sam H. Lott, "High Field Zeeman Studies" (1965), which can be obtained from the Joint University Library, Vanderbilt University, Nashville, Tennessee 37203 or from University Microfilms, Ann Arbor, Michigan.
  3. The magnetic fields also were measured to within ~4% using pickup coils; the results were used as a check of the field strengths determined from the Zeeman patterns of Cu I.
  4. C. E. Moore, Atomic Energy Levels (National Bureau of Standards, Washington, D. C., 1949), Vol. I; (1952), Vol. II.
  5. Y. Ting and H. Lew, Phys. Rev. 105, 581 (1957).
  6. C. Mihul, Ann. Phys. 9, 294 (1928).
  7. A. G. Shenstone, Phys. Rev. 29, 380 (1927); Phil. Trans. Roy. Soc. (London) A235, 195 (1936).
  8. Except when a given Zeeman pattern is completely symmetrical about the zero-field line, both the σ and π components (from observations parallel and perpendicular to the magnetic field, respectively) must be used in the determination of g (see Ref. 9). The magnet used here has been utilized in other experiments to generate fields above 400 kG. This work was purposely limited to 270 kG.
  9. E. Back and A. Landé, Zeemzaneffect and Multiplett-Struktur der Spektrallinien (Julius Springer, Berlin, 1925).
  10. A. G. Shenstone and H. A. Blair, Phil. Mag. 8, 765 (1929).
  11. J. C. van den Bosch, in Encyclopedia of Physics (Springer- Verlag, Berlin, 1957), Vol. 28, pp. 296–332.
  12. E. U. Condon and G. H. Shortley, The Theory of Atomic Spectra (Cambridge University Press, Cambridge, 1951).
  13. J. R. McNally, Jr., Phys. Rev. 73, 1130 (1948).

Back, E.

E. Back and A. Landé, Zeemzaneffect and Multiplett-Struktur der Spektrallinien (Julius Springer, Berlin, 1925).

Blair, H. A.

A. G. Shenstone and H. A. Blair, Phil. Mag. 8, 765 (1929).

Condon, E. U.

E. U. Condon and G. H. Shortley, The Theory of Atomic Spectra (Cambridge University Press, Cambridge, 1951).

Kapitsa, P.

P. Kapitsa, Proc. Roy. Soc. (London) A167, 1 (1938).

Landé, A.

E. Back and A. Landé, Zeemzaneffect and Multiplett-Struktur der Spektrallinien (Julius Springer, Berlin, 1925).

Lew, H.

Y. Ting and H. Lew, Phys. Rev. 105, 581 (1957).

McNally, Jr., J. R.

J. R. McNally, Jr., Phys. Rev. 73, 1130 (1948).

Mihul, C.

C. Mihul, Ann. Phys. 9, 294 (1928).

Moore, C. E.

C. E. Moore, Atomic Energy Levels (National Bureau of Standards, Washington, D. C., 1949), Vol. I; (1952), Vol. II.

Shenstone, A. G.

A. G. Shenstone, Phys. Rev. 29, 380 (1927); Phil. Trans. Roy. Soc. (London) A235, 195 (1936).

A. G. Shenstone and H. A. Blair, Phil. Mag. 8, 765 (1929).

Shortley, G. H.

E. U. Condon and G. H. Shortley, The Theory of Atomic Spectra (Cambridge University Press, Cambridge, 1951).

Ting, Y.

Y. Ting and H. Lew, Phys. Rev. 105, 581 (1957).

van den Bosch, J. C.

J. C. van den Bosch, in Encyclopedia of Physics (Springer- Verlag, Berlin, 1957), Vol. 28, pp. 296–332.

Other

P. Kapitsa, Proc. Roy. Soc. (London) A167, 1 (1938).

Only a brief outline of the methods and results are given here. A complete discussion, including details of construction of apparatus and the original experimental data, can be found in the thesis of Sam H. Lott, "High Field Zeeman Studies" (1965), which can be obtained from the Joint University Library, Vanderbilt University, Nashville, Tennessee 37203 or from University Microfilms, Ann Arbor, Michigan.

The magnetic fields also were measured to within ~4% using pickup coils; the results were used as a check of the field strengths determined from the Zeeman patterns of Cu I.

C. E. Moore, Atomic Energy Levels (National Bureau of Standards, Washington, D. C., 1949), Vol. I; (1952), Vol. II.

Y. Ting and H. Lew, Phys. Rev. 105, 581 (1957).

C. Mihul, Ann. Phys. 9, 294 (1928).

A. G. Shenstone, Phys. Rev. 29, 380 (1927); Phil. Trans. Roy. Soc. (London) A235, 195 (1936).

Except when a given Zeeman pattern is completely symmetrical about the zero-field line, both the σ and π components (from observations parallel and perpendicular to the magnetic field, respectively) must be used in the determination of g (see Ref. 9). The magnet used here has been utilized in other experiments to generate fields above 400 kG. This work was purposely limited to 270 kG.

E. Back and A. Landé, Zeemzaneffect and Multiplett-Struktur der Spektrallinien (Julius Springer, Berlin, 1925).

A. G. Shenstone and H. A. Blair, Phil. Mag. 8, 765 (1929).

J. C. van den Bosch, in Encyclopedia of Physics (Springer- Verlag, Berlin, 1957), Vol. 28, pp. 296–332.

E. U. Condon and G. H. Shortley, The Theory of Atomic Spectra (Cambridge University Press, Cambridge, 1951).

J. R. McNally, Jr., Phys. Rev. 73, 1130 (1948).

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