Phonon Dispersion Calculator
Calculate phonon dispersion relations for 1D crystal models
About Phonon Dispersion
Phonon dispersion relations describe how the frequency of lattice vibrations depends on the wavevector. They are fundamental to understanding thermal and acoustic properties of solids.
Key Features:
- Monoatomic: ω = 2√(K/m)|sin(ka/2)|
- Diatomic: Acoustic + Optical branches
- Band gap appears when m1 ≠ m2
- Group velocity: vg = dω/dk
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: University Physics
by Young & Freedman
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.