Isotope Effect and Hyperfine Structure of the Mercury Resonance Line


RECENTLY Schüler and Keyston1 have made some interesting studies on the hyperfine structure of the spectral lines of thallium, from which they conclude that the hyperfine structure is due in part to a relative shift of the spectral terms due to two isotopes of thallium (203 and 205), originating from differences in the structure of the electric field of the atomic nucleus. The isotope splitting is greatest in the terms with relatively small nuclear moment splittings.

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  1. 1

    H. Schüler and J. E. Keyston, Die Naturwissenschaften, 19, p. 320; 1931.

  2. 2

    S. Mrozowski, Bull. Acad. Pol., p. 464; 1930; in part also NATURE, 126, p. 684; 1930.

  3. 3

    S. Mrozowski, Phys. Review, 37, p. 845; 1931.

  4. 4

    S. Mrozowski, Zeit. für Physik, 68, p. 278; 1931.

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MROZOWSKI, S. Isotope Effect and Hyperfine Structure of the Mercury Resonance Line. Nature 127, 890–891 (1931).

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