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Results tagged with phonons
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user 21108
Collective excitations in periodic, elastic arrangements of atoms or molecules in condensed matter, like solids and some liquids. They are quasiparticle quantum modes of vibration of elastic structures of interacting particles.
21
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3
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Phonon carries zero spin. Why?
photons and phonons both have polarization, we attribute spin 1 for photons but spin 0 for phonons. Why? …
- 252
9
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1
answer
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Why the name "optical phonon"?
Why do we have two different types of phonons, optical and acoustical? Why are they called optical phonons? …
- 213k
4
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1
answer
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What is the experimental evidence for quantization of lattice vibrations?
Is there any direct experiment to show the quantization of lattice vibrations?
- 3,949
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Reciprocal lattice and phonon
As we obtain a reciprocal lattice for a given crystal we see that discrete values of wavevectors are allowed but a phonon wavevector spectrum is a continuum. Is there a relation between reciprocal wav …
- 125