Quantised collective vibrational mode of a crystal lattice. Carries heat (thermal conductivity), couples to electrons (mediating conventional superconductivity via Cooper pairing), and scatters X-rays/neutrons. Behaves as a boson.
Quantised collective vibrational mode of a crystal lattice. Carries heat (thermal conductivity), couples to electrons (mediating conventional superconductivity via Cooper pairing), and scatters X-rays/neutrons. Behaves as a boson.