🔬 Discovery

Zeeman effect

Efecto Zeeman

Date
1896 · confidence high
Place
Leiden, Netherlands
Credited to
Pieter Zeeman; Hendrik Lorentz
People
👤 Pieter Zeeman1865–1943
Field
Communication

What was discovered

Spectral lines split in the presence of a magnetic field; Lorentz explains it with oscillating electrons and estimates their charge-to-mass ratio before Thomson. It links spectra, magnetism and atomic structure.

Nobel Prize shared with Lorentz in 1902; Faraday had attempted the experiment in 1862 without success.

What it led to

  • Lorentz's electron theory
  • Electron spin (anomalous Zeeman effect)
  • Measurement of solar and stellar magnetic fields
  • Magnetic resonance
🕸️ View in the graph

Built on

Made possible

📄 Original publication

XXXII. On the influence of magnetism on the nature of the light emitted by a substanceP. Zeeman · The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science · 1897

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