Zeeman effect HFS and isotope shift - PowerPoint PPT Presentation

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Zeeman effect HFS and isotope shift

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Zeeman effect HFS and isotope shift Anomalous Zeeman Effect More than three closely spaced optical lines were observed. The interaction that splits the energy levels ... – PowerPoint PPT presentation

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Title: Zeeman effect HFS and isotope shift


1
Zeeman effect HFS and isotope shift
2
Anomalous Zeeman Effect
  • More than three closely spaced optical lines were
    observed.
  • The interaction that splits the energy levels in
    an external magnetic field is caused by
    interaction.
  • The magnetic moment depends on
  • The 2J 1 degeneracy for a given total angular
    momentum state J is removed by the effect of the
    .
  • If the is small compared to internal
    magnetic field, then and precess about
    while precesses slowly about .
  • lt 0.1T for Zeeman splitting
  • The normal Zeeman affect occurs for S0

Orbital contribution
and
Spin magnetic moment
3
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4
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5
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6
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7
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8
Nuclear shell model
9
HFS and isotope shift
10
(No Transcript)
11
F 5/2
(5/2)A
3/2
(3/2)A
1/2
HFS levels for
Q0 full lines
B gt 0

broken lines B lt 0

with

12
Field isotope shift
A
r
charge density of s electrons at the site of the
nucleus
This amounts to a few percent
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