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{{Short description|Quantized vibration in a crystal lattice}}
{{Short description|Quantized vibration in a crystal lattice}}


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A '''phonon''' is a quantized vibration of atoms in a [[Physics:Quantum materials/crystal lattice|crystal lattice]]. It represents a collective excitation of the lattice.
A '''phonon''' is a quantized vibration of atoms in a [[Physics:Quantum materials/crystal lattice|crystal lattice]]. It represents a collective excitation of the lattice.


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<div style="font-size:90%;">Phonons describe collective vibrational motion in a crystal lattice.</div>
<div style="font-size:90%;">Phonons describe collective vibrational motion in a crystal lattice.</div>
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[[File:Phonon_vibration.png|thumb|280px|Quantum materials/phonon.]]
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Revision as of 14:23, 17 May 2026


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A phonon is a quantized vibration of atoms in a crystal lattice. It represents a collective excitation of the lattice.

Phonons describe collective vibrational motion in a crystal lattice.
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Quantum materials/phonon.

Description

In a solid, atoms vibrate about their equilibrium positions. These vibrations can be described as waves, and when quantized, they behave as particles called phonons.

Phonons play an important role in thermal and electrical properties of materials.

Properties

  • quantized lattice vibration
  • collective excitation
  • affects thermal and transport properties

See also

Table of contents (84 articles)

Index

Full contents

References


Author: Harold Foppele


Source attribution: Physics:Quantum materials/phonon

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