📜 Theorem, law or theory

Clausius–Mossotti relation

Ecuación de Clausius-Mossoti

Date
1850 · confidence medium
Place
Pisa, Tuscany, Italy
Credited to
Ottaviano-Fabrizio Mossotti (1850); rediscovered by Rudolf Clausius (1879)
Field
Cosmos & Earth

What was discovered

An electromagnetism relation expressing a material's dielectric constant in terms of the atomic polarizability of its constituents, formulated by Ottaviano-Fabrizio Mossotti and later rediscovered by Rudolf Clausius.

What it led to

  • Lorentz–Lorenz equation for refractive index
  • Study of dielectric polarization in materials
  • Capacitor and dielectric material design
  • Solid-state physics

Links

Sources✓ verified 2026-09-28