傲慢人 发表于 2025-3-23 11:06:17
Phonon-Induced Thermal Propertiesses thermal expansion. All these are integral contributions of the phonon spectrum; only at low temperatures, where part of the spectrum can be frozen-out, do they become partially spectrum selective. Thermal conductivity is determined by various mechanisms of phonon scattering.mydriatic 发表于 2025-3-23 15:45:08
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Interaction of Light with Solids function of the frequency of the electromagnetic radiation: the complex dielectric constant. The dielectric constant describes the ability of a solid to screen an electric field – with electronic and ionic contributions – and is one of the most important material parameters. This function is closel催眠 发表于 2025-3-24 12:45:06
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Photon–Free-Electron Interactionregion between the absorption edge and the Reststrahlen wavelength. In a driving external field, the ensemble of free electrons (or, at higher frequency, of valence-electrons) oscillates with respect to the ion cores on the whole, leading to a plasma resonance absorption. The plasmon dispersion has制度 发表于 2025-3-24 20:27:55
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