🔬 Discovery

Debye model

Modelo de Debye

Date
1912 · confidence high
Place
Zurich, Switzerland
Credited to
Peter Debye
Field
Cosmos & Earth

What was discovered

A method that estimates the contribution of lattice vibrations (phonons) to a solid's specific heat, treating them as waves in a box rather than as independent oscillators like the Einstein model. It correctly predicts that specific heat falls with the cube of temperature at low temperatures.

Developed by Peter Debye in 1912, while working at the University of Zurich.

What it led to

  • Debye's T³ law for low-temperature specific heat
  • an improvement on the Einstein solid model
  • a foundation of modern solid-state and phonon physics

Links

Sources✓ verified 2026-09-28